diff --git a/benchmark/core.js b/benchmark/core.js
index 7b6ffe7c9bb..9f199ddd46d 100644
--- a/benchmark/core.js
+++ b/benchmark/core.js
@@ -3,7 +3,7 @@
 const benchmark = require('./benchmark')
 const proxyquire = require('proxyquire')
 
-const Config = require('../packages/dd-trace/src/config')
+const getConfig = require('../packages/dd-trace/src/config')
 const DatadogTracer = require('../packages/dd-trace/src/tracer')
 const DatadogSpanContext = require('../packages/dd-trace/src/opentracing/span_context')
 const TextMapPropagator = require('../packages/dd-trace/src/opentracing/propagation/text_map')
@@ -22,7 +22,7 @@ const Sampler = require('../packages/dd-trace/src/sampler')
 const format = require('../packages/dd-trace/src/format')
 const { AgentEncoder: Agent04Encoder } = require('../packages/dd-trace/src/encode/0.4')
 const { AgentEncoder: Agent05Encoder } = require('../packages/dd-trace/src/encode/0.5')
-const config = new Config({ service: 'benchmark' })
+const config = getConfig({ service: 'benchmark' })
 const id = require('../packages/dd-trace/src/id')
 const Histogram = require('../packages/dd-trace/src/histogram')
 const histogram = new Histogram()
diff --git a/benchmark/openfeature.js b/benchmark/openfeature.js
index 05e29f92a9d..e96d65f876b 100644
--- a/benchmark/openfeature.js
+++ b/benchmark/openfeature.js
@@ -4,12 +4,12 @@ const benchmark = require('./benchmark')
 const proxyquire = require('proxyquire')
 const { createSingleExposureEvent, createExposureEventArray } = require('./stubs/exposure-events')
 
-const Config = require('../packages/dd-trace/src/config')
+const getConfig = require('../packages/dd-trace/src/config')
 const ExposuresWriter = proxyquire('../packages/dd-trace/src/openfeature/writers/exposures', {
   '../../exporters/common/request': () => {}
 })
 
-const config = new Config({ service: 'benchmark', version: '1.0.0', env: 'test' })
+const config = getConfig({ service: 'benchmark', version: '1.0.0', env: 'test' })
 const suite = benchmark('openfeature')
 
 let writer
diff --git a/benchmark/sirun/debugger/start-devtools-client.js b/benchmark/sirun/debugger/start-devtools-client.js
index f743a644912..754c21843c3 100644
--- a/benchmark/sirun/debugger/start-devtools-client.js
+++ b/benchmark/sirun/debugger/start-devtools-client.js
@@ -1,6 +1,6 @@
 'use strict'
 
-const Config = require('../../../packages/dd-trace/src/config')
+const getConfig = require('../../../packages/dd-trace/src/config')
 const { start } = require('../../../packages/dd-trace/src/debugger')
 const { generateProbeConfig } = require('../../../packages/dd-trace/test/debugger/devtools_client/utils')
 
@@ -8,7 +8,7 @@ const breakpoint = {
   file: process.env.BREAKPOINT_FILE,
   line: process.env.BREAKPOINT_LINE
 }
-const config = new Config()
+const config = getConfig()
 const rc = {
   setProductHandler (product, cb) {
     const action = 'apply'
diff --git a/packages/datadog-plugin-http/test/server.spec.js b/packages/datadog-plugin-http/test/server.spec.js
index fc9370e7000..0cd5a65e557 100644
--- a/packages/datadog-plugin-http/test/server.spec.js
+++ b/packages/datadog-plugin-http/test/server.spec.js
@@ -17,6 +17,7 @@ describe('Plugin', () => {
   let tracer
   let port
   let app
+  let timeout
 
   ['http', 'node:http'].forEach(pluginToBeLoaded => {
     describe(`${pluginToBeLoaded}/server`, () => {
@@ -32,13 +33,15 @@ describe('Plugin', () => {
       afterEach(() => {
         appListener && appListener.close()
         app = null
+        clearTimeout(timeout)
+        timeout = null
         return agent.close({ ritmReset: false })
       })
 
       describe('canceled request', () => {
         beforeEach(() => {
           listener = (req, res) => {
-            setTimeout(() => {
+            timeout = setTimeout(() => {
               app && app(req, res)
               res.writeHead(200)
               res.end()
diff --git a/packages/datadog-plugin-openai/test/services.spec.js b/packages/datadog-plugin-openai/test/services.spec.js
index bb1ef373f80..155eddff9d2 100644
--- a/packages/datadog-plugin-openai/test/services.spec.js
+++ b/packages/datadog-plugin-openai/test/services.spec.js
@@ -1,6 +1,7 @@
 'use strict'
 
 const services = require('../src/services')
+const { getConfigFresh } = require('../../dd-trace/test/helpers/config')
 
 describe('Plugin', () => {
   describe('openai services', () => {
@@ -10,23 +11,23 @@ describe('Plugin', () => {
       })
 
       it('dogstatsd does not throw when missing .dogstatsd', () => {
-        const service = services.init({
+        const service = services.init(getConfigFresh({
           hostname: 'foo',
           service: 'bar',
           apiKey: 'my api key',
           interval: 1000
-        })
+        }))
 
         service.metrics.increment('mykey')
         service.logger.log('hello')
       })
 
       it('logger does not throw', () => {
-        const service = services.init({
+        const service = services.init(getConfigFresh({
           hostname: 'foo',
           service: 'bar',
           interval: 1000
-        })
+        }))
 
         service.logger.log('hello')
       })
diff --git a/packages/dd-trace/src/config.js b/packages/dd-trace/src/config.js
index fd02d3766ad..b20636224d9 100644
--- a/packages/dd-trace/src/config.js
+++ b/packages/dd-trace/src/config.js
@@ -4,6 +4,7 @@ const fs = require('fs')
 const os = require('os')
 const uuid = require('crypto-randomuuid') // we need to keep the old uuid dep because of cypress
 const { URL } = require('url')
+
 const log = require('./log')
 const tagger = require('./tagger')
 const set = require('../../datadog-core/src/utils/src/set')
@@ -1507,4 +1508,12 @@ function getAgentUrl (url, options) {
   }
 }
 
-module.exports = Config
+let configInstance = null
+function getConfig (options) {
+  if (!configInstance) {
+    configInstance = new Config(options)
+  }
+  return configInstance
+}
+
+module.exports = getConfig
diff --git a/packages/dd-trace/src/proxy.js b/packages/dd-trace/src/proxy.js
index 3c569c47ce1..1a90294840e 100644
--- a/packages/dd-trace/src/proxy.js
+++ b/packages/dd-trace/src/proxy.js
@@ -1,7 +1,7 @@
 'use strict'
 const NoopProxy = require('./noop/proxy')
 const DatadogTracer = require('./tracer')
-const Config = require('./config')
+const getConfig = require('./config')
 const runtimeMetrics = require('./runtime_metrics')
 const log = require('./log')
 const { setStartupLogPluginManager } = require('./startup-log')
@@ -98,7 +98,7 @@ class Tracer extends NoopProxy {
     this._initialized = true
 
     try {
-      const config = new Config(options) // TODO: support dynamic code config
+      const config = getConfig(options) // TODO: support dynamic code config
 
       if (config.crashtracking.enabled) {
         require('./crashtracking').start(config)
diff --git a/packages/dd-trace/test/appsec/attacker-fingerprinting.express.plugin.spec.js b/packages/dd-trace/test/appsec/attacker-fingerprinting.express.plugin.spec.js
index fdb9b20faba..531a97af137 100644
--- a/packages/dd-trace/test/appsec/attacker-fingerprinting.express.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/attacker-fingerprinting.express.plugin.spec.js
@@ -1,12 +1,13 @@
 'use strict'
 
+const path = require('node:path')
+
 const axios = require('axios')
 const { assert } = require('chai')
-const path = require('path')
 
 const agent = require('../plugins/agent')
 const appsec = require('../../src/appsec')
-const Config = require('../../src/config')
+const { getConfigFresh } = require('../helpers/config')
 const { withVersions } = require('../../../dd-trace/test/setup/mocha')
 
 withVersions('express', 'express', expressVersion => {
@@ -40,7 +41,7 @@ withVersions('express', 'express', expressVersion => {
     })
 
     beforeEach(() => {
-      appsec.enable(new Config(
+      appsec.enable(getConfigFresh(
         {
           appsec: {
             enabled: true,
diff --git a/packages/dd-trace/test/appsec/attacker-fingerprinting.fastify.plugin.spec.js b/packages/dd-trace/test/appsec/attacker-fingerprinting.fastify.plugin.spec.js
index f93cbc72793..d893bc4f339 100644
--- a/packages/dd-trace/test/appsec/attacker-fingerprinting.fastify.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/attacker-fingerprinting.fastify.plugin.spec.js
@@ -1,12 +1,13 @@
 'use strict'
 
+const path = require('node:path')
+
 const Axios = require('axios')
 const { assert } = require('chai')
-const path = require('path')
 
 const agent = require('../plugins/agent')
 const appsec = require('../../src/appsec')
-const Config = require('../../src/config')
+const { getConfigFresh } = require('../helpers/config')
 const { withVersions } = require('../setup/mocha')
 
 withVersions('fastify', 'fastify', fastifyVersion => {
@@ -40,7 +41,7 @@ withVersions('fastify', 'fastify', fastifyVersion => {
     })
 
     beforeEach(() => {
-      appsec.enable(new Config(
+      appsec.enable(getConfigFresh(
         {
           appsec: {
             enabled: true,
diff --git a/packages/dd-trace/test/appsec/attacker-fingerprinting.passport-http.plugin.spec.js b/packages/dd-trace/test/appsec/attacker-fingerprinting.passport-http.plugin.spec.js
index b8f8e25495b..149385d2153 100644
--- a/packages/dd-trace/test/appsec/attacker-fingerprinting.passport-http.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/attacker-fingerprinting.passport-http.plugin.spec.js
@@ -5,7 +5,7 @@ const { assert } = require('chai')
 
 const agent = require('../plugins/agent')
 const appsec = require('../../src/appsec')
-const Config = require('../../src/config')
+const { getConfigFresh } = require('../helpers/config')
 const { withVersions } = require('../setup/mocha')
 
 function assertFingerprintInTraces (traces) {
@@ -27,7 +27,7 @@ withVersions('passport-http', 'passport-http', version => {
     })
 
     before(() => {
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: true
       }))
     })
diff --git a/packages/dd-trace/test/appsec/attacker-fingerprinting.passport-local.plugin.spec.js b/packages/dd-trace/test/appsec/attacker-fingerprinting.passport-local.plugin.spec.js
index dc384f58227..784a0df8276 100644
--- a/packages/dd-trace/test/appsec/attacker-fingerprinting.passport-local.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/attacker-fingerprinting.passport-local.plugin.spec.js
@@ -5,7 +5,7 @@ const { assert } = require('chai')
 
 const agent = require('../plugins/agent')
 const appsec = require('../../src/appsec')
-const Config = require('../../src/config')
+const { getConfigFresh } = require('../helpers/config')
 const { withVersions } = require('../setup/mocha')
 
 function assertFingerprintInTraces (traces) {
@@ -27,7 +27,7 @@ withVersions('passport-local', 'passport-local', version => {
     })
 
     before(() => {
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: true
       }))
     })
diff --git a/packages/dd-trace/test/appsec/attacker-fingerprinting.spec.js b/packages/dd-trace/test/appsec/attacker-fingerprinting.spec.js
index d73c5bbbcc8..03208835278 100644
--- a/packages/dd-trace/test/appsec/attacker-fingerprinting.spec.js
+++ b/packages/dd-trace/test/appsec/attacker-fingerprinting.spec.js
@@ -2,10 +2,11 @@
 
 const axios = require('axios')
 const { assert } = require('chai')
+
 const agent = require('../plugins/agent')
 const tracer = require('../../../../index')
 const appsec = require('../../src/appsec')
-const Config = require('../../src/config')
+const { getConfigFresh } = require('../helpers/config')
 
 describe('Attacker fingerprinting', () => {
   describe('SDK', () => {
@@ -21,7 +22,7 @@ describe('Attacker fingerprinting', () => {
     }
 
     before(() => {
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         enabled: true
       }))
     })
diff --git a/packages/dd-trace/test/appsec/extended-data-collection.express.plugin.spec.js b/packages/dd-trace/test/appsec/extended-data-collection.express.plugin.spec.js
index cf478e4bc5a..6b3db716e29 100644
--- a/packages/dd-trace/test/appsec/extended-data-collection.express.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/extended-data-collection.express.plugin.spec.js
@@ -1,14 +1,16 @@
 'use strict'
 
-const Config = require('../../src/config')
-const path = require('path')
+const assert = require('node:assert')
+const path = require('node:path')
+
+const axios = require('axios')
+const msgpack = require('@msgpack/msgpack')
+
 const { withVersions } = require('../setup/mocha')
 const agent = require('../plugins/agent')
 const appsec = require('../../src/appsec')
-const axios = require('axios')
-const assert = require('assert')
-const msgpack = require('@msgpack/msgpack')
 const { createDeepObject } = require('./utils')
+const { getConfigFresh } = require('../helpers/config')
 
 describe('extended data collection', () => {
   before(() => {
@@ -68,7 +70,7 @@ describe('extended data collection', () => {
     })
 
     beforeEach(() => {
-      appsec.enable(new Config(
+      appsec.enable(getConfigFresh(
         {
           appsec: {
             enabled: true,
diff --git a/packages/dd-trace/test/appsec/extended-data-collection.fastify.plugin.spec.js b/packages/dd-trace/test/appsec/extended-data-collection.fastify.plugin.spec.js
index 33e3d1a6357..03c2effdad1 100644
--- a/packages/dd-trace/test/appsec/extended-data-collection.fastify.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/extended-data-collection.fastify.plugin.spec.js
@@ -1,14 +1,17 @@
 'use strict'
 
-const Config = require('../../src/config')
-const path = require('path')
+const assert = require('node:assert')
+const path = require('node:path')
+
+const axios = require('axios')
+const msgpack = require('@msgpack/msgpack')
+
 const { withVersions } = require('../setup/mocha')
 const agent = require('../plugins/agent')
 const appsec = require('../../src/appsec')
-const axios = require('axios')
-const assert = require('assert')
-const msgpack = require('@msgpack/msgpack')
+
 const { createDeepObject } = require('./utils')
+const { getConfigFresh } = require('../helpers/config')
 
 describe('extended data collection', () => {
   before(() => {
@@ -69,7 +72,7 @@ describe('extended data collection', () => {
     })
 
     beforeEach(() => {
-      appsec.enable(new Config(
+      appsec.enable(getConfigFresh(
         {
           appsec: {
             enabled: true,
diff --git a/packages/dd-trace/test/appsec/graphql.test-utils.js b/packages/dd-trace/test/appsec/graphql.test-utils.js
index 31b91cf3fa6..51789a6a6f6 100644
--- a/packages/dd-trace/test/appsec/graphql.test-utils.js
+++ b/packages/dd-trace/test/appsec/graphql.test-utils.js
@@ -10,7 +10,7 @@ const fs = require('node:fs')
 const { graphqlJson, json } = require('../../src/appsec/blocked_templates')
 const agent = require('../plugins/agent')
 const appsec = require('../../src/appsec')
-const Config = require('../../src/config')
+const { getConfigFresh } = require('../helpers/config')
 
 const schema = `
 directive @case(format: String) on FIELD
@@ -76,7 +76,7 @@ async function makeGraphqlRequest (port, variables, derivativeParam, extraHeader
 function graphqlCommonTests (config) {
   describe('Block with content', () => {
     beforeEach(() => {
-      appsec.enable(new Config({ appsec: { enabled: true, rules: path.join(__dirname, 'graphql-rules.json') } }))
+      appsec.enable(getConfigFresh({ appsec: { enabled: true, rules: path.join(__dirname, 'graphql-rules.json') } }))
     })
 
     afterEach(() => {
@@ -151,10 +151,10 @@ function graphqlCommonTests (config) {
 
   describe('Block with custom content', () => {
     const blockedTemplateGraphql = path.join(__dirname, 'graphql.block.json')
-    const customGraphqlJson = fs.readFileSync(blockedTemplateGraphql)
+    const customGraphqlJson = fs.readFileSync(blockedTemplateGraphql, { encoding: 'utf8' })
 
     beforeEach(() => {
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'graphql-rules.json'),
@@ -181,7 +181,7 @@ function graphqlCommonTests (config) {
 
   describe('Block with redirect', () => {
     beforeEach(() => {
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'graphql-rules-redirect.json')
diff --git a/packages/dd-trace/test/appsec/iast/analyzers/hardcoded-password-analyzer.spec.js b/packages/dd-trace/test/appsec/iast/analyzers/hardcoded-password-analyzer.spec.js
index 623dbfaf398..e4b3a961b3f 100644
--- a/packages/dd-trace/test/appsec/iast/analyzers/hardcoded-password-analyzer.spec.js
+++ b/packages/dd-trace/test/appsec/iast/analyzers/hardcoded-password-analyzer.spec.js
@@ -10,7 +10,7 @@ const fs = require('node:fs')
 const os = require('node:os')
 
 const agent = require('../../../plugins/agent')
-const Config = require('../../../../src/config')
+const { getConfigFresh } = require('../../../helpers/config')
 
 const hardcodedPasswordAnalyzer = require('../../../../src/appsec/iast/analyzers/hardcoded-password-analyzer')
 const iast = require('../../../../src/appsec/iast')
@@ -125,7 +125,7 @@ describe('Hardcoded Password Analyzer', () => {
 
       beforeEach(() => {
         const tracer = require('../../../../')
-        const config = new Config({
+        const config = getConfigFresh({
           experimental: {
             iast: {
               enabled: true,
diff --git a/packages/dd-trace/test/appsec/iast/analyzers/hardcoded-secret-analyzer.spec.js b/packages/dd-trace/test/appsec/iast/analyzers/hardcoded-secret-analyzer.spec.js
index feaafac8dd3..f7e035d1f26 100644
--- a/packages/dd-trace/test/appsec/iast/analyzers/hardcoded-secret-analyzer.spec.js
+++ b/packages/dd-trace/test/appsec/iast/analyzers/hardcoded-secret-analyzer.spec.js
@@ -9,7 +9,7 @@ const fs = require('node:fs')
 const os = require('node:os')
 
 const agent = require('../../../plugins/agent')
-const Config = require('../../../../src/config')
+const { getConfigFresh } = require('../../../helpers/config')
 
 const { NameAndValue, ValueOnly } = require('../../../../src/appsec/iast/analyzers/hardcoded-rule-type')
 const hardcodedSecretAnalyzer = require('../../../../src/appsec/iast/analyzers/hardcoded-secret-analyzer')
@@ -95,7 +95,7 @@ describe('Hardcoded Secret Analyzer', () => {
 
       beforeEach(() => {
         const tracer = require('../../../../')
-        const config = new Config({
+        const config = getConfigFresh({
           experimental: {
             iast: {
               enabled: true,
diff --git a/packages/dd-trace/test/appsec/iast/index.spec.js b/packages/dd-trace/test/appsec/iast/index.spec.js
index f2e9599cc47..fc6339ab0fb 100644
--- a/packages/dd-trace/test/appsec/iast/index.spec.js
+++ b/packages/dd-trace/test/appsec/iast/index.spec.js
@@ -6,7 +6,6 @@ const { describe, it, beforeEach, afterEach } = require('mocha')
 const proxyquire = require('proxyquire')
 const sinon = require('sinon')
 
-const Config = require('../../../src/config')
 const agent = require('../../plugins/agent')
 const iast = require('../../../src/appsec/iast')
 const iastContextFunctions = require('../../../src/appsec/iast/iast-context')
@@ -14,6 +13,7 @@ const overheadController = require('../../../src/appsec/iast/overhead-controller
 const vulnerabilityReporter = require('../../../src/appsec/iast/vulnerability-reporter')
 const { testInRequest } = require('./utils')
 const { IAST_MODULE } = require('../../../src/appsec/rasp/fs-plugin')
+const { getConfigFresh } = require('../../helpers/config')
 
 describe('IAST Index', () => {
   beforeEach(() => {
@@ -48,7 +48,7 @@ describe('IAST Index', () => {
         const originalReleaseRequest = overheadController.releaseRequest
 
         beforeEach(() => {
-          iast.enable(new Config({
+          iast.enable(getConfigFresh({
             experimental: {
               iast: {
                 enabled: true,
@@ -112,7 +112,7 @@ describe('IAST Index', () => {
     let appsecFsPlugin
     let analyzers
 
-    const config = new Config({
+    const config = getConfigFresh({
       experimental: {
         iast: {
           enabled: true,
diff --git a/packages/dd-trace/test/appsec/iast/overhead-controller.spec.js b/packages/dd-trace/test/appsec/iast/overhead-controller.spec.js
index f3e3a9daed0..a4fba5440b2 100644
--- a/packages/dd-trace/test/appsec/iast/overhead-controller.spec.js
+++ b/packages/dd-trace/test/appsec/iast/overhead-controller.spec.js
@@ -1,21 +1,22 @@
 'use strict'
 
+const { EventEmitter } = require('node:events')
+
 const axios = require('axios')
 const { expect } = require('chai')
 const { describe, it, beforeEach, afterEach, before, after } = require('mocha')
 const proxyquire = require('proxyquire')
 const sinon = require('sinon')
-const { EventEmitter } = require('node:events')
 
 const vulnerabilityReporter = require('../../../src/appsec/iast/vulnerability-reporter')
 const DatadogSpanContext = require('../../../src/opentracing/span_context')
-const Config = require('../../../src/config')
 const id = require('../../../src/id')
 const iast = require('../../../src/appsec/iast')
 const rewriter = require('../../../src/appsec/iast/taint-tracking/rewriter')
 const { testInRequest } = require('./utils')
 const agent = require('../../plugins/agent')
 const vulnerabilities = require('../../../src/appsec/iast/vulnerabilities')
+const { getConfigFresh } = require('../../helpers/config')
 
 describe('Overhead controller', () => {
   let oceContextKey, overheadController, web
@@ -31,7 +32,7 @@ describe('Overhead controller', () => {
       })
       oceContextKey = overheadController.OVERHEAD_CONTROLLER_CONTEXT_KEY
 
-      const config = new Config({
+      const config = getConfigFresh({
         experimental: {
           iast: true
         }
@@ -434,7 +435,7 @@ describe('Overhead controller', () => {
         })
 
         it('should detect vulnerabilities only in one if max concurrent is 1', (done) => {
-          const config = new Config({
+          const config = getConfigFresh({
             experimental: {
               iast: {
                 enabled: true,
@@ -486,7 +487,7 @@ describe('Overhead controller', () => {
         })
 
         it('should detect vulnerabilities in both if max concurrent is 2', (done) => {
-          const config = new Config({
+          const config = getConfigFresh({
             experimental: {
               iast: {
                 enabled: true,
@@ -542,7 +543,7 @@ describe('Overhead controller', () => {
         it('should recovery requests budget', function (done) {
           // 3 in parallel => 2 detects - 1 not detects
           // on finish the first => launch 2 - should detect 1 more
-          const config = new Config({
+          const config = getConfigFresh({
             experimental: {
               iast: {
                 enabled: true,
@@ -614,7 +615,7 @@ describe('Overhead controller', () => {
         })
 
         it('should add _dd.iast.enabled tag even when no vulnerability is detected', (done) => {
-          const config = new Config({
+          const config = getConfigFresh({
             experimental: {
               iast: {
                 enabled: true,
diff --git a/packages/dd-trace/test/appsec/iast/taint-tracking/plugin.spec.js b/packages/dd-trace/test/appsec/iast/taint-tracking/plugin.spec.js
index eae8ff94080..4a433c1888e 100644
--- a/packages/dd-trace/test/appsec/iast/taint-tracking/plugin.spec.js
+++ b/packages/dd-trace/test/appsec/iast/taint-tracking/plugin.spec.js
@@ -15,7 +15,7 @@ const {
   HTTP_REQUEST_URI,
   SQL_ROW_VALUE
 } = require('../../../../src/appsec/iast/taint-tracking/source-types')
-const Config = require('../../../../src/config')
+const { getConfigFresh } = require('../../../helpers/config')
 
 const middlewareNextChannel = dc.channel('apm:express:middleware:next')
 const queryReadFinishChannel = dc.channel('datadog:query:read:finish')
@@ -43,7 +43,7 @@ describe('IAST Taint tracking plugin', () => {
       './operations': sinon.spy(taintTrackingOperations),
       '../../../../../datadog-core': datadogCore
     })
-    const config = new Config()
+    const config = getConfigFresh()
     taintTrackingPlugin.enable(config.iast)
   })
 
@@ -292,7 +292,7 @@ describe('IAST Taint tracking plugin', () => {
     describe('taint database sources', () => {
       it('Should not taint if config is set to 0', () => {
         taintTrackingPlugin.disable()
-        const config = new Config()
+        const config = getConfigFresh()
         config.dbRowsToTaint = 0
         taintTrackingPlugin.enable(config)
 
@@ -395,7 +395,7 @@ describe('IAST Taint tracking plugin', () => {
       describe('with config set to 2', () => {
         beforeEach(() => {
           taintTrackingPlugin.disable()
-          const config = new Config()
+          const config = getConfigFresh()
           config.dbRowsToTaint = 2
           taintTrackingPlugin.enable(config)
         })
diff --git a/packages/dd-trace/test/appsec/iast/taint-tracking/sources/graphql.sources.test-utils.js b/packages/dd-trace/test/appsec/iast/taint-tracking/sources/graphql.sources.test-utils.js
index db1269b0621..783f86945e9 100644
--- a/packages/dd-trace/test/appsec/iast/taint-tracking/sources/graphql.sources.test-utils.js
+++ b/packages/dd-trace/test/appsec/iast/taint-tracking/sources/graphql.sources.test-utils.js
@@ -6,7 +6,7 @@ const { describe, it, beforeEach, afterEach } = require('mocha')
 
 const agent = require('../../../../plugins/agent')
 const iast = require('../../../../../src/appsec/iast')
-const Config = require('../../../../../src/config')
+const { getConfigFresh } = require('../../../../helpers/config')
 const vulnerabilityReporter = require('../../../../../src/appsec/iast/vulnerability-reporter')
 const overheadController = require('../../../../../src/appsec/iast/overhead-controller')
 
@@ -70,7 +70,7 @@ async function makeGraphqlRequest (port, query, variables = {}) {
 function graphqlCommonTests (config) {
   describe('Graphql sources tests', () => {
     beforeEach(() => {
-      iast.enable(new Config({
+      iast.enable(getConfigFresh({
         experimental: {
           iast: {
             enabled: true,
diff --git a/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.cookie.plugin.spec.js b/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.cookie.plugin.spec.js
index d258b0e31c6..6c525dbc176 100644
--- a/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.cookie.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.cookie.plugin.spec.js
@@ -4,7 +4,7 @@ const axios = require('axios')
 const { expect } = require('chai')
 const { describe, it, beforeEach, afterEach } = require('mocha')
 
-const Config = require('../../../../../src/config')
+const { getConfigFresh } = require('../../../../helpers/config')
 const { storage } = require('../../../../../../datadog-core')
 const iast = require('../../../../../src/appsec/iast')
 const iastContextFunctions = require('../../../../../src/appsec/iast/iast-context')
@@ -40,7 +40,7 @@ describe('Cookies sourcing with cookies', () => {
 
     function tests (config) {
       beforeEach(() => {
-        iast.enable(new Config({
+        iast.enable(getConfigFresh({
           experimental: {
             iast: {
               enabled: true,
diff --git a/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.express.plugin.spec.js b/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.express.plugin.spec.js
index e260a902179..9ddc4df55f5 100644
--- a/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.express.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.express.plugin.spec.js
@@ -4,9 +4,9 @@ const axios = require('axios')
 const { expect } = require('chai')
 const { describe, it, beforeEach, afterEach } = require('mocha')
 const semver = require('semver')
+
 const { NODE_MAJOR } = require('../../../../../../../version')
 const agent = require('../../../../plugins/agent')
-const Config = require('../../../../../src/config')
 const { storage } = require('../../../../../../datadog-core')
 const iast = require('../../../../../src/appsec/iast')
 const iastContextFunctions = require('../../../../../src/appsec/iast/iast-context')
@@ -16,6 +16,7 @@ const {
   HTTP_REQUEST_PATH_PARAM,
   HTTP_REQUEST_URI
 } = require('../../../../../src/appsec/iast/taint-tracking/source-types')
+const { getConfigFresh } = require('../../../../helpers/config')
 
 describe('URI sourcing with express', () => {
   let express
@@ -36,7 +37,7 @@ describe('URI sourcing with express', () => {
     })
 
     beforeEach(() => {
-      iast.enable(new Config({
+      iast.enable(getConfigFresh({
         experimental: {
           iast: {
             enabled: true,
@@ -113,7 +114,7 @@ describe('Path params sourcing with express', () => {
     })
 
     beforeEach(() => {
-      iast.enable(new Config({
+      iast.enable(getConfigFresh({
         experimental: {
           iast: {
             enabled: true,
diff --git a/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.fastify.plugin.spec.js b/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.fastify.plugin.spec.js
index c86e462fd32..435effba587 100644
--- a/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.fastify.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.fastify.plugin.spec.js
@@ -5,7 +5,6 @@ const { expect } = require('chai')
 const { describe, it, beforeEach, afterEach } = require('mocha')
 
 const agent = require('../../../../plugins/agent')
-const Config = require('../../../../../src/config')
 const { storage } = require('../../../../../../datadog-core')
 const iast = require('../../../../../src/appsec/iast')
 const iastContextFunctions = require('../../../../../src/appsec/iast/iast-context')
@@ -15,6 +14,7 @@ const {
   HTTP_REQUEST_PATH_PARAM,
   HTTP_REQUEST_URI
 } = require('../../../../../src/appsec/iast/taint-tracking/source-types')
+const { getConfigFresh } = require('../../../../helpers/config')
 
 describe('URI sourcing with fastify', () => {
   let fastify
@@ -30,7 +30,7 @@ describe('URI sourcing with fastify', () => {
     })
 
     beforeEach(() => {
-      iast.enable(new Config({
+      iast.enable(getConfigFresh({
         experimental: {
           iast: {
             enabled: true,
@@ -88,7 +88,7 @@ describe('Path params sourcing with fastify', () => {
     })
 
     beforeEach(() => {
-      iast.enable(new Config({
+      iast.enable(getConfigFresh({
         experimental: {
           iast: {
             enabled: true,
diff --git a/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.headers.spec.js b/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.headers.spec.js
index e4997e703fd..1a9e7957036 100644
--- a/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.headers.spec.js
+++ b/packages/dd-trace/test/appsec/iast/taint-tracking/sources/taint-tracking.headers.spec.js
@@ -4,7 +4,7 @@ const axios = require('axios')
 const { expect } = require('chai')
 const { describe, it, beforeEach, afterEach } = require('mocha')
 
-const Config = require('../../../../../src/config')
+const { getConfigFresh } = require('../../../../helpers/config')
 const { storage } = require('../../../../../../datadog-core')
 const iast = require('../../../../../src/appsec/iast')
 const iastContextFunctions = require('../../../../../src/appsec/iast/iast-context')
@@ -28,7 +28,7 @@ describe('Headers sourcing', () => {
 
   function tests (config) {
     beforeEach(() => {
-      iast.enable(new Config({
+      iast.enable(getConfigFresh({
         experimental: {
           iast: {
             enabled: true,
diff --git a/packages/dd-trace/test/appsec/iast/telemetry/index.spec.js b/packages/dd-trace/test/appsec/iast/telemetry/index.spec.js
index 3b37ca5b7b1..0262f6ea7b7 100644
--- a/packages/dd-trace/test/appsec/iast/telemetry/index.spec.js
+++ b/packages/dd-trace/test/appsec/iast/telemetry/index.spec.js
@@ -7,7 +7,7 @@ const { describe, it, beforeEach, afterEach } = require('mocha')
 const sinon = require('sinon')
 
 const { Verbosity } = require('../../../../src/appsec/iast/telemetry/verbosity')
-const Config = require('../../../../src/config')
+const { getConfigFresh } = require('../../../helpers/config')
 const iast = require('../../../../src/appsec/iast')
 const agent = require('../../../plugins/agent')
 const { testInRequest } = require('../utils')
@@ -174,8 +174,7 @@ describe('Telemetry', () => {
         DD_IAST_ENABLED: 'true',
         DD_IAST_REQUEST_SAMPLING: '100'
       }
-      const config = new Config()
-      iast.enable(config)
+      iast.enable(getConfigFresh())
     })
 
     afterEach(() => {
diff --git a/packages/dd-trace/test/appsec/iast/utils.js b/packages/dd-trace/test/appsec/iast/utils.js
index ddcc8e0e731..58932cbb7a6 100644
--- a/packages/dd-trace/test/appsec/iast/utils.js
+++ b/packages/dd-trace/test/appsec/iast/utils.js
@@ -11,7 +11,7 @@ const { describe, it, beforeEach, afterEach, before, after } = require('mocha')
 const agent = require('../../plugins/agent')
 const rewriter = require('../../../src/appsec/iast/taint-tracking/rewriter')
 const iast = require('../../../src/appsec/iast')
-const Config = require('../../../src/config')
+const { getConfigFresh } = require('../../helpers/config')
 const vulnerabilityReporter = require('../../../src/appsec/iast/vulnerability-reporter')
 const overheadController = require('../../../src/appsec/iast/overhead-controller')
 const { getWebSpan } = require('../utils')
@@ -74,7 +74,7 @@ function testOutsideRequestHasVulnerability (fnToTest, vulnerability, plugins, t
   })
   beforeEach(() => {
     const tracer = require('../../..')
-    const config = new Config({
+    const config = getConfigFresh({
       experimental: {
         iast: {
           enabled: true,
@@ -125,7 +125,7 @@ function beforeEachIastTest (iastConfig) {
   beforeEach(() => {
     overheadController.clearGlobalRouteMap()
     vulnerabilityReporter.clearCache()
-    const config = new Config({
+    const config = getConfigFresh({
       iast: iastConfig
     })
     iast.enable(config)
diff --git a/packages/dd-trace/test/appsec/index.body-parser.plugin.spec.js b/packages/dd-trace/test/appsec/index.body-parser.plugin.spec.js
index 087952cb225..31c3e5b2d5d 100644
--- a/packages/dd-trace/test/appsec/index.body-parser.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/index.body-parser.plugin.spec.js
@@ -1,12 +1,14 @@
 'use strict'
 
-const axios = require('axios')
 const path = require('node:path')
+
+const axios = require('axios')
 const { expect } = require('chai')
 const sinon = require('sinon')
+
 const agent = require('../plugins/agent')
 const appsec = require('../../src/appsec')
-const Config = require('../../src/config')
+const { getConfigFresh } = require('../helpers/config')
 const { json } = require('../../src/appsec/blocked_templates')
 const { withVersions } = require('../setup/mocha')
 
@@ -37,7 +39,12 @@ withVersions('body-parser', 'body-parser', version => {
 
     beforeEach(async () => {
       requestBody = sinon.stub()
-      appsec.enable(new Config({ appsec: { enabled: true, rules: path.join(__dirname, 'body-parser-rules.json') } }))
+      appsec.enable(getConfigFresh({
+        appsec: {
+          enabled: true,
+          rules: path.join(__dirname, 'body-parser-rules.json')
+        }
+      }))
     })
 
     afterEach(() => {
diff --git a/packages/dd-trace/test/appsec/index.cookie-parser.plugin.spec.js b/packages/dd-trace/test/appsec/index.cookie-parser.plugin.spec.js
index 930c34bed87..87b84b504b0 100644
--- a/packages/dd-trace/test/appsec/index.cookie-parser.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/index.cookie-parser.plugin.spec.js
@@ -2,12 +2,13 @@
 
 const assert = require('node:assert')
 const path = require('node:path')
+
 const axios = require('axios')
 const sinon = require('sinon')
 
 const agent = require('../plugins/agent')
 const appsec = require('../../src/appsec')
-const Config = require('../../src/config')
+const { getConfigFresh } = require('../helpers/config')
 const { json } = require('../../src/appsec/blocked_templates')
 const { withVersions } = require('../setup/mocha')
 
@@ -38,7 +39,12 @@ withVersions('cookie-parser', 'cookie-parser', version => {
 
     beforeEach(async () => {
       requestCookie = sinon.stub()
-      appsec.enable(new Config({ appsec: { enabled: true, rules: path.join(__dirname, 'cookie-parser-rules.json') } }))
+      appsec.enable(getConfigFresh({
+        appsec: {
+          enabled: true,
+          rules: path.join(__dirname, 'cookie-parser-rules.json')
+        }
+      }))
     })
 
     afterEach(() => {
diff --git a/packages/dd-trace/test/appsec/index.express.plugin.spec.js b/packages/dd-trace/test/appsec/index.express.plugin.spec.js
index 84d40e1b72e..9aad71f7fd9 100644
--- a/packages/dd-trace/test/appsec/index.express.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/index.express.plugin.spec.js
@@ -12,10 +12,11 @@ const zlib = require('node:zlib')
 const { NODE_MAJOR } = require('../../../../version')
 const agent = require('../plugins/agent')
 const appsec = require('../../src/appsec')
-const Config = require('../../src/config')
 const { json } = require('../../src/appsec/blocked_templates')
 const { withVersions } = require('../setup/mocha')
 
+const { getConfigFresh } = require('../helpers/config')
+
 withVersions('express', 'express', version => {
   if (semver.intersects(version, '<=4.10.5') && NODE_MAJOR >= 24) {
     describe.skip(`refusing to run tests as express@${version} is incompatible with Node.js ${NODE_MAJOR}`)
@@ -72,7 +73,7 @@ withVersions('express', 'express', version => {
     })
 
     beforeEach(async () => {
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'rules-example.json')
@@ -222,7 +223,7 @@ withVersions('express', 'express', version => {
 
     beforeEach(async () => {
       requestBody = sinon.stub()
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'rules-example.json')
@@ -298,7 +299,7 @@ withVersions('express', 'express', version => {
     })
 
     beforeEach(() => {
-      config = new Config({
+      config = getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'api_security_rules.json'),
diff --git a/packages/dd-trace/test/appsec/index.fastify.plugin.spec.js b/packages/dd-trace/test/appsec/index.fastify.plugin.spec.js
index ff2ee61af22..97eea82b26f 100644
--- a/packages/dd-trace/test/appsec/index.fastify.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/index.fastify.plugin.spec.js
@@ -1,19 +1,21 @@
 'use strict'
 
+const path = require('node:path')
+const zlib = require('node:zlib')
+const fs = require('node:fs')
+
 const Axios = require('axios')
 const { assert } = require('chai')
 const semver = require('semver')
 const sinon = require('sinon')
-const path = require('node:path')
-const zlib = require('node:zlib')
-const fs = require('node:fs')
 
 const agent = require('../plugins/agent')
 const appsec = require('../../src/appsec')
-const Config = require('../../src/config')
 const { json } = require('../../src/appsec/blocked_templates')
 const { withVersions } = require('../setup/mocha')
 
+const { getConfigFresh } = require('../helpers/config')
+
 withVersions('fastify', 'fastify', '>=2', (fastifyVersion, _, fastifyLoadedVersion) => {
   describe('Suspicious request blocking - query', () => {
     let server, requestBody, axios
@@ -47,7 +49,7 @@ withVersions('fastify', 'fastify', '>=2', (fastifyVersion, _, fastifyLoadedVersi
 
     beforeEach(async () => {
       requestBody = sinon.stub()
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'rules-example.json')
@@ -112,7 +114,7 @@ withVersions('fastify', 'fastify', '>=2', (fastifyVersion, _, fastifyLoadedVersi
 
     beforeEach(async () => {
       requestBody = sinon.stub()
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'body-parser-rules.json')
@@ -220,7 +222,7 @@ withVersions('fastify', 'fastify', '>=2', (fastifyVersion, _, fastifyLoadedVersi
     })
 
     beforeEach(async () => {
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'body-parser-rules.json')
@@ -309,7 +311,7 @@ withVersions('fastify', 'fastify', '>=2', (fastifyVersion, _, fastifyLoadedVersi
     })
 
     beforeEach(async () => {
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'rules-example.json')
@@ -488,7 +490,7 @@ withVersions('fastify', 'fastify', '>=2', (fastifyVersion, _, fastifyLoadedVersi
           beforeEach(async () => {
             requestCookie = sinon.stub()
             appsec.enable(
-              new Config({
+              getConfigFresh({
                 appsec: {
                   enabled: true,
                   rules: path.join(__dirname, 'cookie-parser-rules.json')
@@ -581,7 +583,7 @@ withVersions('fastify', 'fastify', '>=2', (fastifyVersion, _, fastifyLoadedVersi
 
       beforeEach(() => {
         uploadSpy = sinon.stub()
-        appsec.enable(new Config({
+        appsec.enable(getConfigFresh({
           appsec: {
             enabled: true,
             rules: path.join(__dirname, 'body-parser-rules.json')
@@ -679,7 +681,7 @@ describe('Api Security - Fastify', () => {
     })
 
     beforeEach(() => {
-      config = new Config({
+      config = getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'api_security_rules.json'),
diff --git a/packages/dd-trace/test/appsec/index.sequelize.plugin.spec.js b/packages/dd-trace/test/appsec/index.sequelize.plugin.spec.js
index 0c57e0c5947..615713ae44f 100644
--- a/packages/dd-trace/test/appsec/index.sequelize.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/index.sequelize.plugin.spec.js
@@ -1,10 +1,12 @@
 'use strict'
 
 const path = require('path')
+
 const axios = require('axios')
+
 const agent = require('../plugins/agent')
 const appsec = require('../../src/appsec')
-const Config = require('../../src/config')
+const { getConfigFresh } = require('../helpers/config')
 const { withVersions } = require('../setup/mocha')
 
 describe('sequelize', () => {
@@ -16,7 +18,7 @@ describe('sequelize', () => {
         // init tracer
         before(async () => {
           await agent.load(['express', 'http'], { client: false }, { flushInterval: 1 })
-          appsec.enable(new Config({
+          appsec.enable(getConfigFresh({
             appsec: {
               enabled: true,
               rules: path.join(__dirname, 'rules-example.json'),
diff --git a/packages/dd-trace/test/appsec/index.spec.js b/packages/dd-trace/test/appsec/index.spec.js
index 3a4492a3172..6f31139988a 100644
--- a/packages/dd-trace/test/appsec/index.spec.js
+++ b/packages/dd-trace/test/appsec/index.spec.js
@@ -1,6 +1,7 @@
 'use strict'
 
 const fs = require('node:fs')
+
 const axios = require('axios')
 const { expect } = require('chai')
 const { describe, it, beforeEach, afterEach } = require('mocha')
@@ -29,11 +30,11 @@ const {
 } = require('../../src/appsec/channels')
 const Reporter = require('../../src/appsec/reporter')
 const agent = require('../plugins/agent')
-const Config = require('../../src/config')
 const blockedTemplate = require('../../src/appsec/blocked_templates')
 const { storage } = require('../../../datadog-core')
 const telemetryMetrics = require('../../src/telemetry/metrics')
 const addresses = require('../../src/appsec/addresses')
+const { getConfigFresh } = require('../helpers/config')
 
 const resultActions = {
   actions: {
@@ -1252,7 +1253,7 @@ describe('AppSec Index', function () {
 
       appsecNamespace.reset()
 
-      config = new Config({
+      config = getConfigFresh({
         appsec: {
           enabled: true
         }
@@ -1350,7 +1351,7 @@ describe('IP blocking', function () {
   })
 
   beforeEach(() => {
-    appsec.enable(new Config({
+    appsec.enable(getConfigFresh({
       appsec: {
         enabled: true,
         rasp: {
diff --git a/packages/dd-trace/test/appsec/rasp/command_injection.express.plugin.spec.js b/packages/dd-trace/test/appsec/rasp/command_injection.express.plugin.spec.js
index c60f9f91f49..0cfadc6f378 100644
--- a/packages/dd-trace/test/appsec/rasp/command_injection.express.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/rasp/command_injection.express.plugin.spec.js
@@ -8,7 +8,7 @@ const { describe, it, beforeEach, before, after } = require('mocha')
 
 const agent = require('../../plugins/agent')
 const appsec = require('../../../src/appsec')
-const Config = require('../../../src/config')
+const { getConfigFresh } = require('../../helpers/config')
 const { withVersions } = require('../../setup/mocha')
 const { checkRaspExecutedAndHasThreat, checkRaspExecutedAndNotThreat } = require('./utils')
 
@@ -71,7 +71,7 @@ describe('RASP - command_injection', () => {
         app(req, res)
       })
 
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'resources', 'rasp_rules.json'),
diff --git a/packages/dd-trace/test/appsec/rasp/lfi.express.plugin.spec.js b/packages/dd-trace/test/appsec/rasp/lfi.express.plugin.spec.js
index 836361995e9..7ab1d8d81de 100644
--- a/packages/dd-trace/test/appsec/rasp/lfi.express.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/rasp/lfi.express.plugin.spec.js
@@ -1,17 +1,19 @@
 'use strict'
 
-const { NODE_MAJOR } = require('../../../../../version')
-const semver = require('semver')
+const os = require('node:os')
+const fs = require('node:fs')
+const path = require('node:path')
+
 const Axios = require('axios')
-const os = require('os')
-const fs = require('fs')
+const { assert } = require('chai')
+const semver = require('semver')
+
+const { NODE_MAJOR } = require('../../../../../version')
 const agent = require('../../plugins/agent')
 const appsec = require('../../../src/appsec')
-const Config = require('../../../src/config')
 const { withVersions } = require('../../setup/mocha')
-const path = require('path')
-const { assert } = require('chai')
 const { checkRaspExecutedAndNotThreat, checkRaspExecutedAndHasThreat } = require('./utils')
+const { getConfigFresh } = require('../../helpers/config')
 
 describe('RASP - lfi', () => {
   let axios
@@ -58,7 +60,7 @@ describe('RASP - lfi', () => {
           app(req, res)
         })
 
-        appsec.enable(new Config({
+        appsec.enable(getConfigFresh({
           appsec: {
             enabled: true,
             rules: path.join(__dirname, 'resources', 'lfi_rasp_rules.json'),
@@ -471,7 +473,7 @@ describe('RASP - lfi', () => {
         }
       })
 
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'resources', 'lfi_rasp_rules.json'),
diff --git a/packages/dd-trace/test/appsec/rasp/rasp_blocking.fastify.plugin.spec.js b/packages/dd-trace/test/appsec/rasp/rasp_blocking.fastify.plugin.spec.js
index b2bc250316d..eae7b94f2f2 100644
--- a/packages/dd-trace/test/appsec/rasp/rasp_blocking.fastify.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/rasp/rasp_blocking.fastify.plugin.spec.js
@@ -2,7 +2,7 @@
 
 const path = require('node:path')
 const agent = require('../../plugins/agent')
-const Config = require('../../../src/config')
+const { getConfigFresh } = require('../../helpers/config')
 const appsec = require('../../../src/appsec')
 
 const Axios = require('axios')
@@ -21,7 +21,7 @@ describe('RASP - fastify blocking', () => {
     before(async () => {
       await agent.load(['http', 'fastify'], { client: false })
 
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'resources', 'rasp_rules.json'),
diff --git a/packages/dd-trace/test/appsec/rasp/sql_injection.mysql2.plugin.spec.js b/packages/dd-trace/test/appsec/rasp/sql_injection.mysql2.plugin.spec.js
index 22f806c6837..afeb744f11a 100644
--- a/packages/dd-trace/test/appsec/rasp/sql_injection.mysql2.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/rasp/sql_injection.mysql2.plugin.spec.js
@@ -2,7 +2,7 @@
 
 const agent = require('../../plugins/agent')
 const appsec = require('../../../src/appsec')
-const Config = require('../../../src/config')
+const getConfig = require('../../../src/config')
 const { withVersions } = require('../../setup/mocha')
 const path = require('path')
 const Axios = require('axios')
@@ -33,7 +33,7 @@ describe('RASP - sql_injection', () => {
             app(req, res)
           })
 
-          appsec.enable(new Config({
+          appsec.enable(getConfig({
             appsec: {
               enabled: true,
               rules: path.join(__dirname, 'resources', 'rasp_rules.json'),
diff --git a/packages/dd-trace/test/appsec/rasp/sql_injection.pg.plugin.spec.js b/packages/dd-trace/test/appsec/rasp/sql_injection.pg.plugin.spec.js
index 0d236b86b9e..301844876aa 100644
--- a/packages/dd-trace/test/appsec/rasp/sql_injection.pg.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/rasp/sql_injection.pg.plugin.spec.js
@@ -10,7 +10,7 @@ const agent = require('../../plugins/agent')
 const appsec = require('../../../src/appsec')
 const { wafRunFinished } = require('../../../src/appsec/channels')
 const addresses = require('../../../src/appsec/addresses')
-const Config = require('../../../src/config')
+const getConfig = require('../../../src/config')
 const { withVersions } = require('../../setup/mocha')
 const { checkRaspExecutedAndNotThreat, checkRaspExecutedAndHasThreat } = require('./utils')
 
@@ -40,7 +40,7 @@ describe('RASP - sql_injection', () => {
             app(req, res)
           })
 
-          appsec.enable(new Config({
+          appsec.enable(getConfig({
             appsec: {
               enabled: true,
               rules: path.join(__dirname, 'resources', 'rasp_rules.json'),
diff --git a/packages/dd-trace/test/appsec/rasp/ssrf.express.plugin.spec.js b/packages/dd-trace/test/appsec/rasp/ssrf.express.plugin.spec.js
index d25211c7f7e..a89704a8cc8 100644
--- a/packages/dd-trace/test/appsec/rasp/ssrf.express.plugin.spec.js
+++ b/packages/dd-trace/test/appsec/rasp/ssrf.express.plugin.spec.js
@@ -1,12 +1,15 @@
 'use strict'
 
+const path = require('node:path')
+
 const Axios = require('axios')
+const { assert } = require('chai')
+const { describe, it, beforeEach, before, after } = require('mocha')
+
+const { getConfigFresh } = require('../../helpers/config')
 const agent = require('../../plugins/agent')
 const appsec = require('../../../src/appsec')
-const Config = require('../../../src/config')
 const { withVersions } = require('../../setup/mocha')
-const path = require('path')
-const { assert } = require('chai')
 const { checkRaspExecutedAndNotThreat, checkRaspExecutedAndHasThreat } = require('./utils')
 
 function noop () {}
@@ -27,7 +30,7 @@ describe('RASP - ssrf', () => {
         app(req, res)
       })
 
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'resources', 'rasp_rules.json'),
@@ -68,8 +71,11 @@ describe('RASP - ssrf', () => {
       ['http', 'https'].forEach(protocol => {
         describe(`Test using ${protocol}`, () => {
           it('Should not detect threat', async () => {
+            // Hack to enforce the module to be loaded once before the actual request
+            const module = require(protocol)
+
             app = (req, res) => {
-              const clientRequest = require(protocol).get(`${protocol}://${req.query.host}`)
+              const clientRequest = module.get(`${protocol}://${req.query.host}`)
               clientRequest.on('error', noop)
               res.end('end')
             }
@@ -232,7 +238,7 @@ describe('RASP - ssrf', () => {
         }
       })
 
-      appsec.enable(new Config({
+      appsec.enable(getConfigFresh({
         appsec: {
           enabled: true,
           rules: path.join(__dirname, 'resources', 'rasp_rules.json'),
diff --git a/packages/dd-trace/test/appsec/reporter.spec.js b/packages/dd-trace/test/appsec/reporter.spec.js
index 898f8e533c8..f556f6e1956 100644
--- a/packages/dd-trace/test/appsec/reporter.spec.js
+++ b/packages/dd-trace/test/appsec/reporter.spec.js
@@ -10,6 +10,11 @@ const zlib = require('node:zlib')
 const { storage } = require('../../../datadog-core')
 const { ASM } = require('../../src/standalone/product')
 const { USER_KEEP } = require('../../../../ext/priority')
+const { getConfigFresh } = require('../helpers/config')
+
+function getAppSecConfig (options) {
+  return getConfigFresh({ appsec: options }).appsec
+}
 
 describe('reporter', () => {
   let Reporter
@@ -69,7 +74,7 @@ describe('reporter', () => {
 
   afterEach(() => {
     sinon.restore()
-    Reporter.init(defaultReporterConfig)
+    Reporter.init(getAppSecConfig(defaultReporterConfig))
     Reporter.metricsQueue.clear()
   })
 
@@ -499,19 +504,18 @@ describe('reporter', () => {
       })
 
       it('should report request body in meta struct on rasp event when enabled', () => {
-        Reporter.init(
-          {
-            rateLimit: 100,
-            extendedHeadersCollection: {
-              enabled: false,
-              redaction: true,
-              maxHeaders: 50
-            },
-            rasp: {
-              bodyCollection: true
-            }
+        const config = getAppSecConfig({
+          rateLimit: 100,
+          extendedHeadersCollection: {
+            enabled: false,
+            redaction: true,
+            maxHeaders: 50
+          },
+          rasp: {
+            bodyCollection: true
           }
-        )
+        })
+        Reporter.init(config)
 
         Reporter.reportAttack({
           events: [
@@ -530,19 +534,18 @@ describe('reporter', () => {
       })
 
       it('should not report request body in meta struct on rasp event when disabled', () => {
-        Reporter.init(
-          {
-            rateLimit: 100,
-            extendedHeadersCollection: {
-              enabled: false,
-              redaction: true,
-              maxHeaders: 50
-            },
-            rasp: {
-              bodyCollection: false
-            }
+        const config = getAppSecConfig({
+          rateLimit: 100,
+          extendedHeadersCollection: {
+            enabled: false,
+            redaction: true,
+            maxHeaders: 50
+          },
+          rasp: {
+            bodyCollection: false
           }
-        )
+        })
+        Reporter.init(config)
 
         Reporter.reportAttack({
           events: [
@@ -612,19 +615,18 @@ describe('reporter', () => {
         })
 
         it('should set request body size exceeded when reporter request body has been truncated', () => {
-          Reporter.init(
-            {
-              rateLimit: 100,
-              extendedHeadersCollection: {
-                enabled: false,
-                redaction: true,
-                maxHeaders: 50
-              },
-              rasp: {
-                bodyCollection: true
-              }
+          const config = getAppSecConfig({
+            rateLimit: 100,
+            extendedHeadersCollection: {
+              enabled: false,
+              redaction: true,
+              maxHeaders: 50
+            },
+            rasp: {
+              bodyCollection: true
             }
-          )
+          })
+          Reporter.init(config)
 
           req.body = requestBody
 
@@ -645,19 +647,18 @@ describe('reporter', () => {
         })
 
         it('should set request body size exceeded metric for old and new approaches when both events happen', () => {
-          Reporter.init(
-            {
-              rateLimit: 100,
-              extendedHeadersCollection: {
-                enabled: false,
-                redaction: true,
-                maxHeaders: 50
-              },
-              rasp: {
-                bodyCollection: true
-              }
+          const config = getAppSecConfig({
+            rateLimit: 100,
+            extendedHeadersCollection: {
+              enabled: false,
+              redaction: true,
+              maxHeaders: 50
+            },
+            rasp: {
+              bodyCollection: true
             }
-          )
+          })
+          Reporter.init(config)
 
           req.body = requestBody
 
@@ -1100,7 +1101,7 @@ describe('reporter', () => {
         }))
 
       after(() => {
-        Reporter.init(defaultReporterConfig)
+        Reporter.init(getAppSecConfig(defaultReporterConfig))
       })
 
       it('should collect extended headers on appsec event', () => {
@@ -1118,7 +1119,7 @@ describe('reporter', () => {
         }
         span.context()._tags['appsec.event'] = 'true'
 
-        Reporter.init({
+        const config = getAppSecConfig({
           rateLimit: 100,
           extendedHeadersCollection: {
             enabled: true,
@@ -1129,6 +1130,7 @@ describe('reporter', () => {
             bodyCollection: false
           }
         })
+        Reporter.init(config)
         Reporter.finishRequest(req, res)
 
         const expectedTags = {
@@ -1161,19 +1163,19 @@ describe('reporter', () => {
         const discardedReqHeadersCount = extendedRequestHeaders.length - reportedExtReqHeadersCount
         const discardedResHeadersCount = extendedResponseHeaders.length - maxHeaders
 
-        Reporter.init(
-          {
-            rateLimit: 100,
-            extendedHeadersCollection: {
-              enabled: true,
-              redaction: false,
-              maxHeaders
-            },
-            rasp: {
-              bodyCollection: false
-            }
+        const config = getAppSecConfig({
+          rateLimit: 100,
+          extendedHeadersCollection: {
+            enabled: true,
+            redaction: false,
+            maxHeaders
+          },
+          rasp: {
+            bodyCollection: false
           }
-        )
+        })
+
+        Reporter.init(config)
         Reporter.finishRequest(req, res)
 
         const expectedTags = {
@@ -1207,7 +1209,7 @@ describe('reporter', () => {
         }
         span.context()._tags['appsec.event'] = 'true'
 
-        Reporter.init({
+        const config = getAppSecConfig({
           rateLimit: 100,
           extendedHeadersCollection: {
             enabled: true,
@@ -1218,6 +1220,8 @@ describe('reporter', () => {
             bodyCollection: false
           }
         })
+
+        Reporter.init(config)
         Reporter.finishRequest(req, res)
 
         const expectedTags = {
diff --git a/packages/dd-trace/test/appsec/response_blocking.spec.js b/packages/dd-trace/test/appsec/response_blocking.spec.js
index 8d28ba46e7a..db7311d485d 100644
--- a/packages/dd-trace/test/appsec/response_blocking.spec.js
+++ b/packages/dd-trace/test/appsec/response_blocking.spec.js
@@ -4,12 +4,13 @@ const Axios = require('axios')
 const { assert } = require('chai')
 const { describe, it, beforeEach, afterEach, before, after } = require('mocha')
 const sinon = require('sinon')
+
 const path = require('node:path')
 const fs = require('node:fs')
 
 const agent = require('../plugins/agent')
 const appsec = require('../../src/appsec')
-const Config = require('../../src/config')
+const { getConfigFresh } = require('../helpers/config')
 const WafContext = require('../../src/appsec/waf/waf_context_wrapper')
 const blockingResponse = JSON.parse(require('../../src/appsec/blocked_templates').json)
 
@@ -52,7 +53,7 @@ describe('HTTP Response Blocking', () => {
         .once('error', reject)
     })
 
-    appsec.enable(new Config({
+    appsec.enable(getConfigFresh({
       appsec: {
         enabled: true,
         rules: path.join(__dirname, 'response_blocking_rules.json'),
diff --git a/packages/dd-trace/test/appsec/rule_manager.spec.js b/packages/dd-trace/test/appsec/rule_manager.spec.js
index f62f8bed94f..3e8e7b37f3c 100644
--- a/packages/dd-trace/test/appsec/rule_manager.spec.js
+++ b/packages/dd-trace/test/appsec/rule_manager.spec.js
@@ -8,19 +8,19 @@ const fs = require('node:fs')
 const path = require('node:path')
 
 const { loadRules, clearAllRules } = require('../../src/appsec/rule_manager')
-const Config = require('../../src/config')
 const { ACKNOWLEDGED, UNACKNOWLEDGED, ERROR } = require('../../src/remote_config/apply_states')
 
 const rules = require('../../src/appsec/recommended.json')
 const waf = require('../../src/appsec/waf')
 const blocking = require('../../src/appsec/blocking')
+const { getConfigFresh } = require('../helpers/config')
 
 describe('AppSec Rule Manager', () => {
   let config
 
   beforeEach(() => {
     clearAllRules()
-    config = new Config()
+    config = getConfigFresh()
 
     sinon.stub(waf, 'init')
     sinon.stub(waf, 'destroy')
@@ -165,7 +165,7 @@ describe('AppSec Rule Manager', () => {
 
       RuleManager.clearAllRules()
 
-      config = new Config()
+      config = getConfigFresh()
       RuleManager.loadRules(config.appsec)
       sinon.resetHistory()
     })
diff --git a/packages/dd-trace/test/appsec/sdk/set_user.spec.js b/packages/dd-trace/test/appsec/sdk/set_user.spec.js
index f7640c69484..f74225f7ff6 100644
--- a/packages/dd-trace/test/appsec/sdk/set_user.spec.js
+++ b/packages/dd-trace/test/appsec/sdk/set_user.spec.js
@@ -10,7 +10,7 @@ const path = require('node:path')
 const agent = require('../../plugins/agent')
 const tracer = require('../../../../../index')
 const appsec = require('../../../src/appsec')
-const Config = require('../../../src/config')
+const { getConfigFresh } = require('../../helpers/config')
 
 describe('set_user', () => {
   describe('Internal API', () => {
@@ -94,7 +94,7 @@ describe('set_user', () => {
   })
 
   describe('Integration with the tracer', () => {
-    const config = new Config({
+    const config = getConfigFresh({
       appsec: {
         enabled: true,
         rules: path.join(__dirname, './user_blocking_rules.json')
diff --git a/packages/dd-trace/test/appsec/sdk/user_blocking-integration.spec.js b/packages/dd-trace/test/appsec/sdk/user_blocking-integration.spec.js
index e930274e3ce..5747016624f 100644
--- a/packages/dd-trace/test/appsec/sdk/user_blocking-integration.spec.js
+++ b/packages/dd-trace/test/appsec/sdk/user_blocking-integration.spec.js
@@ -6,13 +6,13 @@ const { describe, it, beforeEach, afterEach } = require('mocha')
 const agent = require('../../plugins/agent')
 const tracer = require('../../../../../index')
 const appsec = require('../../../src/appsec')
-const Config = require('../../../src/config')
+const { getConfigFresh } = require('../../helpers/config')
 const axios = require('axios')
 const path = require('path')
 const blocking = require('../../../src/appsec/blocking')
 
 describe('user_blocking - Integration with the tracer', () => {
-  const config = new Config({
+  const config = getConfigFresh({
     appsec: {
       enabled: true,
       rules: path.join(__dirname, './user_blocking_rules.json')
diff --git a/packages/dd-trace/test/appsec/sdk/utils.spec.js b/packages/dd-trace/test/appsec/sdk/utils.spec.js
index 157d69e4411..44823804779 100644
--- a/packages/dd-trace/test/appsec/sdk/utils.spec.js
+++ b/packages/dd-trace/test/appsec/sdk/utils.spec.js
@@ -4,14 +4,14 @@ const { assert } = require('chai')
 
 const { getRootSpan } = require('../../../src/appsec/sdk/utils')
 const DatadogTracer = require('../../../src/tracer')
-const Config = require('../../../src/config')
+const { getConfigFresh } = require('../../helpers/config')
 const id = require('../../../src/id')
 
 describe('Appsec SDK utils', () => {
   let tracer
 
   before(() => {
-    tracer = new DatadogTracer(new Config({
+    tracer = new DatadogTracer(getConfigFresh({
       enabled: true
     }))
   })
diff --git a/packages/dd-trace/test/appsec/telemetry/index.spec.js b/packages/dd-trace/test/appsec/telemetry/index.spec.js
index 3a5e9464a58..a08182b856b 100644
--- a/packages/dd-trace/test/appsec/telemetry/index.spec.js
+++ b/packages/dd-trace/test/appsec/telemetry/index.spec.js
@@ -4,7 +4,7 @@ const { assert } = require('chai')
 const { describe, it, beforeEach, afterEach } = require('mocha')
 const sinon = require('sinon')
 
-const Config = require('../../../src/config')
+const { getConfigFresh } = require('../../helpers/config')
 const appsecTelemetry = require('../../../src/appsec/telemetry')
 const telemetryMetrics = require('../../../src/telemetry/metrics')
 
@@ -38,7 +38,7 @@ describe('appsec enabled metric', () => {
     })
 
     it('should not gauge nor interval', () => {
-      const config = new Config()
+      const config = getConfigFresh()
       global.setInterval = sinon.stub()
 
       appsecTelemetry.enable(config)
@@ -53,7 +53,7 @@ describe('appsec enabled metric', () => {
     })
 
     it('should call to gauge.track metric when is enabled by remote config', () => {
-      const config = new Config()
+      const config = getConfigFresh()
 
       appsecTelemetry.enable(config)
 
@@ -68,7 +68,7 @@ describe('appsec enabled metric', () => {
 
     it('should call to gauge.track metric when is enabled by environment variable', () => {
       process.env.DD_APPSEC_ENABLED = 'true'
-      const config = new Config()
+      const config = getConfigFresh()
 
       appsecTelemetry.enable(config)
 
@@ -82,7 +82,7 @@ describe('appsec enabled metric', () => {
     })
 
     it('should call to gauge.track metric when is enabled by code', () => {
-      const config = new Config({ appsec: true })
+      const config = getConfigFresh({ appsec: true })
 
       appsecTelemetry.enable(config)
 
@@ -96,7 +96,7 @@ describe('appsec enabled metric', () => {
     })
 
     it('should call to gauge.track metric with unknown where is calculated', () => {
-      const config = new Config({ appsec: true })
+      const config = getConfigFresh({ appsec: true })
       config.getOrigin = () => 'calculated'
 
       appsecTelemetry.enable(config)
@@ -115,7 +115,7 @@ describe('appsec enabled metric', () => {
       global.setInterval = sinon.stub()
       global.setInterval.returns({ unref })
 
-      const config = new Config()
+      const config = getConfigFresh()
       config.telemetry.heartbeatInterval = 10_000 // in milliseconds
 
       appsecTelemetry.enable(config)
diff --git a/packages/dd-trace/test/appsec/telemetry/rasp.spec.js b/packages/dd-trace/test/appsec/telemetry/rasp.spec.js
index f44b8d77e75..c2b3ddeab95 100644
--- a/packages/dd-trace/test/appsec/telemetry/rasp.spec.js
+++ b/packages/dd-trace/test/appsec/telemetry/rasp.spec.js
@@ -8,7 +8,7 @@ const telemetryMetrics = require('../../../src/telemetry/metrics')
 const appsecNamespace = telemetryMetrics.manager.namespace('appsec')
 
 const appsecTelemetry = require('../../../src/appsec/telemetry')
-const Config = require('../../../src/config')
+const getConfig = require('../../../src/config')
 
 describe('Appsec Rasp Telemetry metrics', () => {
   const wafVersion = '0.0.1'
@@ -31,7 +31,7 @@ describe('Appsec Rasp Telemetry metrics', () => {
 
   describe('if enabled', () => {
     beforeEach(() => {
-      const config = new Config()
+      const config = getConfig()
       config.telemetry.enabled = true
       config.telemetry.metrics = true
 
diff --git a/packages/dd-trace/test/appsec/telemetry/user.spec.js b/packages/dd-trace/test/appsec/telemetry/user.spec.js
index d434e6f41e8..070d3205d36 100644
--- a/packages/dd-trace/test/appsec/telemetry/user.spec.js
+++ b/packages/dd-trace/test/appsec/telemetry/user.spec.js
@@ -8,7 +8,7 @@ const telemetryMetrics = require('../../../src/telemetry/metrics')
 const appsecNamespace = telemetryMetrics.manager.namespace('appsec')
 
 const appsecTelemetry = require('../../../src/appsec/telemetry')
-const Config = require('../../../src/config')
+const getConfig = require('../../../src/config')
 
 describe('Appsec User Telemetry metrics', () => {
   let count, inc
@@ -27,7 +27,7 @@ describe('Appsec User Telemetry metrics', () => {
 
   describe('if enabled', () => {
     beforeEach(() => {
-      const config = new Config()
+      const config = getConfig()
       config.telemetry.enabled = true
       config.telemetry.metrics = true
 
diff --git a/packages/dd-trace/test/appsec/telemetry/waf.spec.js b/packages/dd-trace/test/appsec/telemetry/waf.spec.js
index 99805494b62..934533a81cd 100644
--- a/packages/dd-trace/test/appsec/telemetry/waf.spec.js
+++ b/packages/dd-trace/test/appsec/telemetry/waf.spec.js
@@ -8,7 +8,7 @@ const telemetryMetrics = require('../../../src/telemetry/metrics')
 const appsecNamespace = telemetryMetrics.manager.namespace('appsec')
 
 const appsecTelemetry = require('../../../src/appsec/telemetry')
-const Config = require('../../../src/config')
+const getConfig = require('../../../src/config')
 
 describe('Appsec Waf Telemetry metrics', () => {
   const wafVersion = '0.0.1'
@@ -41,7 +41,7 @@ describe('Appsec Waf Telemetry metrics', () => {
     }
 
     beforeEach(() => {
-      const config = new Config()
+      const config = getConfig()
       config.telemetry.enabled = true
       config.telemetry.metrics = true
 
diff --git a/packages/dd-trace/test/appsec/utils.js b/packages/dd-trace/test/appsec/utils.js
index 311ccd0184e..0983531abe9 100644
--- a/packages/dd-trace/test/appsec/utils.js
+++ b/packages/dd-trace/test/appsec/utils.js
@@ -9,7 +9,7 @@ function getWebSpan (traces) {
     }
   }
 
-  throw new Error('web span not found')
+  throw new Error('Sanity check failed: web span not found', { cause: traces })
 }
 
 function createDeepObject (sheetValue, currentLevel = 1, max = 20) {
diff --git a/packages/dd-trace/test/appsec/waf/index.spec.js b/packages/dd-trace/test/appsec/waf/index.spec.js
index 7d2194d9fdd..57731b3ec0e 100644
--- a/packages/dd-trace/test/appsec/waf/index.spec.js
+++ b/packages/dd-trace/test/appsec/waf/index.spec.js
@@ -5,7 +5,7 @@ const { expect } = require('chai')
 const { describe, it, beforeEach, afterEach } = require('mocha')
 const sinon = require('sinon')
 const proxyquire = require('proxyquire')
-const Config = require('../../../src/config')
+const { getConfigFresh } = require('../../helpers/config')
 const rules = require('../../../src/appsec/recommended.json')
 const Reporter = require('../../../src/appsec/reporter')
 const { match } = require('sinon')
@@ -26,7 +26,7 @@ describe('WAF Manager', () => {
   let keepTrace, updateRateLimitedMetric, limiterStub
 
   beforeEach(() => {
-    config = new Config()
+    config = getConfigFresh()
 
     limiterStub = {
       isAllowed: sinon.stub().returns(true)
diff --git a/packages/dd-trace/test/ci-visibility/dynamic-instrumentation/target-app/test-visibility-dynamic-instrumentation-script.js b/packages/dd-trace/test/ci-visibility/dynamic-instrumentation/target-app/test-visibility-dynamic-instrumentation-script.js
index 27a9b1ec30f..c856c865c78 100644
--- a/packages/dd-trace/test/ci-visibility/dynamic-instrumentation/target-app/test-visibility-dynamic-instrumentation-script.js
+++ b/packages/dd-trace/test/ci-visibility/dynamic-instrumentation/target-app/test-visibility-dynamic-instrumentation-script.js
@@ -3,12 +3,12 @@
 const path = require('path')
 const getDiClient = require('../../../../src/ci-visibility/dynamic-instrumentation')
 const sum = require('./di-dependency')
-const Config = require('../../../../src/config')
+const getConfig = require('../../../../src/config')
 
 // keep process alive
 const intervalId = setInterval(() => {}, 5000)
 
-const diClient = getDiClient(new Config())
+const diClient = getDiClient(getConfig())
 
 diClient.start()
 
diff --git a/packages/dd-trace/test/config.spec.js b/packages/dd-trace/test/config.spec.js
index 8edd0106aaf..4ad8e7f2a7c 100644
--- a/packages/dd-trace/test/config.spec.js
+++ b/packages/dd-trace/test/config.spec.js
@@ -5,7 +5,7 @@ const sinon = require('sinon')
 const { it, describe, beforeEach, afterEach, context } = require('tap').mocha
 const proxyquire = require('proxyquire')
 
-const { readFileSync } = require('node:fs')
+const { readFileSync, mkdtempSync, rmSync, writeFileSync } = require('node:fs')
 const assert = require('node:assert/strict')
 const { once } = require('node:events')
 const path = require('node:path')
@@ -18,7 +18,7 @@ const { assertObjectContains } = require('../../../integration-tests/helpers')
 const { DD_MAJOR } = require('../../../version')
 
 describe('Config', () => {
-  let Config
+  let getConfig
   let log
   let pkg
   let env
@@ -49,13 +49,14 @@ describe('Config', () => {
       './pkg': pkg
     })
 
-    Config = proxyquire('../src/config', {
+    // Reload the config module with each call to getConfig to ensure we get a new instance of the config.
+    getConfig = (options) => proxyquire.noPreserveCache()('../src/config', {
       './config_defaults': configDefaults,
       './log': log,
       './telemetry': { updateConfig },
       fs,
       os
-    })
+    })(options)
   }
 
   beforeEach(() => {
@@ -72,7 +73,10 @@ describe('Config', () => {
       existsSync: (param) => {
         existsSyncParam = param
         return existsSyncReturn
-      }
+      },
+      rmSync,
+      mkdtempSync,
+      writeFileSync,
     }
     os = {
       type () {
@@ -125,7 +129,7 @@ describe('Config', () => {
     it('should set new runtimeMetricsRuntimeId from deprecated DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED', async () => {
       process.env.DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED = 'true'
       assert.strictEqual(process.env.DD_RUNTIME_METRICS_RUNTIME_ID_ENABLED, undefined)
-      const config = new Config()
+      const config = getConfig()
       expect(config).to.have.property('runtimeMetricsRuntimeId', true)
       assert.strictEqual(getEnvironmentVariable('DD_RUNTIME_METRICS_RUNTIME_ID_ENABLED'), 'true')
       delete process.env.DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED
@@ -153,7 +157,7 @@ describe('Config', () => {
 
     reloadLoggerAndConfig()
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.property('debug', true)
     expect(config).to.have.property('logger', undefined)
@@ -182,7 +186,7 @@ describe('Config', () => {
     // required if we want to check updates to config.debug and config.logLevel which is fetched from logger
     reloadLoggerAndConfig()
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.property('debug', false)
     expect(config).to.have.property('service', 'service')
@@ -212,7 +216,7 @@ describe('Config', () => {
     // required if we want to check updates to config.debug and config.logLevel which is fetched from logger
     reloadLoggerAndConfig()
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.property('debug', true)
     expect(config).to.have.property('service', 'otel_service')
@@ -233,7 +237,7 @@ describe('Config', () => {
   it('should correctly map OTEL_RESOURCE_ATTRIBUTES', () => {
     process.env.OTEL_RESOURCE_ATTRIBUTES =
       'deployment.environment=test1,service.name=test2,service.version=5,foo=bar1,baz=qux1'
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.property('env', 'test1')
     expect(config).to.have.property('service', 'test2')
@@ -244,32 +248,32 @@ describe('Config', () => {
   it('should correctly map OTEL_TRACES_SAMPLER and OTEL_TRACES_SAMPLER_ARG', () => {
     process.env.OTEL_TRACES_SAMPLER = 'always_on'
     process.env.OTEL_TRACES_SAMPLER_ARG = '0.1'
-    let config = new Config()
+    let config = getConfig()
     expect(config).to.have.property('sampleRate', 1.0)
 
     process.env.OTEL_TRACES_SAMPLER = 'always_off'
-    config = new Config()
+    config = getConfig()
     expect(config).to.have.property('sampleRate', 0.0)
 
     process.env.OTEL_TRACES_SAMPLER = 'traceidratio'
-    config = new Config()
+    config = getConfig()
     expect(config).to.have.property('sampleRate', 0.1)
 
     process.env.OTEL_TRACES_SAMPLER = 'parentbased_always_on'
-    config = new Config()
+    config = getConfig()
     expect(config).to.have.property('sampleRate', 1.0)
 
     process.env.OTEL_TRACES_SAMPLER = 'parentbased_always_off'
-    config = new Config()
+    config = getConfig()
     expect(config).to.have.property('sampleRate', 0.0)
 
     process.env.OTEL_TRACES_SAMPLER = 'parentbased_traceidratio'
-    config = new Config()
+    config = getConfig()
     expect(config).to.have.property('sampleRate', 0.1)
   })
 
   it('should initialize with the correct defaults', () => {
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.nested.property('apmTracingEnabled', true)
     expect(config).to.have.property('appKey', undefined)
@@ -517,7 +521,7 @@ describe('Config', () => {
   })
 
   it('should support logging', () => {
-    const config = new Config({
+    const config = getConfig({
       logger: {},
       debug: true
     })
@@ -527,7 +531,7 @@ describe('Config', () => {
   })
 
   it('should not warn on undefined DD_TRACE_SPAN_ATTRIBUTE_SCHEMA', () => {
-    const config = new Config({
+    const config = getConfig({
       logger: {},
       debug: true
     })
@@ -539,7 +543,7 @@ describe('Config', () => {
     pkg.name = 'test'
     reloadLoggerAndConfig()
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.property('service', 'test')
     expect(config.tags).to.have.property('service', 'test')
@@ -549,7 +553,7 @@ describe('Config', () => {
     pkg.version = '1.2.3'
     reloadLoggerAndConfig()
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.property('version', '1.2.3')
     expect(config.tags).to.have.property('version', '1.2.3')
@@ -678,7 +682,7 @@ describe('Config', () => {
     // required if we want to check updates to config.debug and config.logLevel which is fetched from logger
     reloadLoggerAndConfig()
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.nested.property('apmTracingEnabled', false)
     expect(config).to.have.property('appKey', 'myAppKey')
@@ -895,7 +899,7 @@ describe('Config', () => {
   it('should ignore empty strings', () => {
     process.env.DD_TAGS = 'service:,env:,version:'
 
-    let config = new Config()
+    let config = getConfig()
 
     expect(config).to.have.property('service', 'node')
     expect(config).to.have.property('env', undefined)
@@ -903,7 +907,7 @@ describe('Config', () => {
 
     process.env.DD_TAGS = 'service: env: version:'
 
-    config = new Config()
+    config = getConfig()
 
     expect(config).to.have.property('service', 'node')
     expect(config).to.have.property('env', undefined)
@@ -913,13 +917,13 @@ describe('Config', () => {
   it('should support space separated tags when experimental mode enabled', () => {
     process.env.DD_TAGS = 'key1:value1 key2:value2'
 
-    let config = new Config()
+    let config = getConfig()
 
     expect(config.tags).to.include({ key1: 'value1', key2: 'value2' })
 
     process.env.DD_TAGS = 'env:test aKey:aVal bKey:bVal cKey:'
 
-    config = new Config()
+    config = getConfig()
 
     expect(config.tags).to.have.property('env', 'test')
     expect(config.tags).to.have.property('aKey', 'aVal')
@@ -928,20 +932,20 @@ describe('Config', () => {
 
     process.env.DD_TAGS = 'env:test,aKey:aVal bKey:bVal cKey:'
 
-    config = new Config()
+    config = getConfig()
 
     expect(config.tags).to.have.property('env', 'test')
     expect(config.tags).to.have.property('aKey', 'aVal bKey:bVal cKey:')
 
     process.env.DD_TAGS = 'a:b:c:d'
 
-    config = new Config()
+    config = getConfig()
 
     expect(config.tags).to.have.property('a', 'b:c:d')
 
     process.env.DD_TAGS = 'a,1'
 
-    config = new Config()
+    config = getConfig()
 
     expect(config.tags).to.have.property('a', '')
     expect(config.tags).to.have.property('1', '')
@@ -952,7 +956,7 @@ describe('Config', () => {
     process.env.DD_TRACE_PROPAGATION_EXTRACT_FIRST = 'TRUE'
     process.env.DD_RUNTIME_METRICS_ENABLED = '0'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.property('tracing', false)
     expect(config).to.have.property('tracePropagationExtractFirst', true)
@@ -968,7 +972,7 @@ describe('Config', () => {
     process.env.DD_SERVICE = 'service'
     process.env.DD_ENV = 'test'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.property('tracing', false)
     expect(config).to.have.nested.property('dogstatsd.hostname', 'agent')
@@ -985,7 +989,7 @@ describe('Config', () => {
     process.env.DD_TRACE_PROPAGATION_STYLE_INJECT = 'tracecontext'
     process.env.DD_TRACE_PROPAGATION_STYLE_EXTRACT = 'tracecontext'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.nested.deep.property('tracePropagationStyle.inject', ['tracecontext'])
     expect(config).to.have.nested.deep.property('tracePropagationStyle.extract', ['tracecontext'])
@@ -994,7 +998,7 @@ describe('Config', () => {
   it('should enable crash tracking for SSI by default', () => {
     process.env.DD_INJECTION_ENABLED = 'tracer'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.nested.deep.property('crashtracking.enabled', true)
   })
@@ -1003,7 +1007,7 @@ describe('Config', () => {
     process.env.DD_CRASHTRACKING_ENABLED = 'false'
     process.env.DD_INJECTION_ENABLED = 'tracer'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.nested.deep.property('crashtracking.enabled', false)
   })
@@ -1012,7 +1016,7 @@ describe('Config', () => {
     process.env.DD_APPSEC_AUTO_USER_INSTRUMENTATION_MODE = 'anonymous'
     process.env.DD_APPSEC_AUTOMATED_USER_EVENTS_TRACKING = 'extended'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.nested.property('appsec.eventTracking.mode', 'anonymous')
   })
@@ -1029,7 +1033,7 @@ describe('Config', () => {
       { service: 'authsvc', sampleRate: 1.0 },
       { sampleRate: 0.1 }
     ]
-    const config = new Config({
+    const config = getConfig({
       appsec: false,
       clientIpEnabled: true,
       clientIpHeader: 'x-true-client-ip',
@@ -1300,7 +1304,7 @@ describe('Config', () => {
   it('should initialize from the options with url taking precedence', () => {
     const logger = {}
     const tags = { foo: 'bar' }
-    const config = new Config({
+    const config = getConfig({
       hostname: 'agent',
       url: 'https://agent2:7777',
       site: 'datadoghq.eu',
@@ -1333,8 +1337,7 @@ describe('Config', () => {
     process.env.DD_TRACE_PROPAGATION_STYLE_EXTRACT = 'datadog'
     process.env.DD_TRACE_PROPAGATION_STYLE = 'datadog'
 
-    // eslint-disable-next-line no-new
-    new Config()
+    getConfig()
 
     expect(log.warn).to.have.been.calledWith('Use either the DD_TRACE_PROPAGATION_STYLE ' +
       'environment variable or separate DD_TRACE_PROPAGATION_STYLE_INJECT and ' +
@@ -1345,8 +1348,7 @@ describe('Config', () => {
     process.env.DD_TRACE_PROPAGATION_STYLE_INJECT = 'datadog'
     process.env.DD_TRACE_PROPAGATION_STYLE = 'datadog'
 
-    // eslint-disable-next-line no-new
-    new Config()
+    getConfig()
 
     expect(log.warn).to.have.been.calledWith('Use either the DD_TRACE_PROPAGATION_STYLE ' +
       'environment variable or separate DD_TRACE_PROPAGATION_STYLE_INJECT and ' +
@@ -1356,7 +1358,7 @@ describe('Config', () => {
   it('should warn if defaulting to v0 span attribute schema', () => {
     process.env.DD_TRACE_SPAN_ATTRIBUTE_SCHEMA = 'foo'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(log.warn).to.have.been.calledWith('Unexpected input for config.spanAttributeSchema, picked default', 'v0')
     expect(config).to.have.property('spanAttributeSchema', 'v0')
@@ -1366,7 +1368,7 @@ describe('Config', () => {
     process.env.DD_GRPC_CLIENT_ERROR_STATUSES = '3,13,400-403'
     process.env.DD_GRPC_SERVER_ERROR_STATUSES = '3,13,400-403'
 
-    let config = new Config()
+    let config = getConfig()
 
     expect(config.grpc.client.error.statuses).to.deep.equal([3, 13, 400, 401, 402, 403])
     expect(config.grpc.server.error.statuses).to.deep.equal([3, 13, 400, 401, 402, 403])
@@ -1374,7 +1376,7 @@ describe('Config', () => {
     process.env.DD_GRPC_CLIENT_ERROR_STATUSES = '1'
     process.env.DD_GRPC_SERVER_ERROR_STATUSES = '1'
 
-    config = new Config()
+    config = getConfig()
 
     expect(config.grpc.client.error.statuses).to.deep.equal([1])
     expect(config.grpc.server.error.statuses).to.deep.equal([1])
@@ -1382,7 +1384,7 @@ describe('Config', () => {
     process.env.DD_GRPC_CLIENT_ERROR_STATUSES = '2,10,13-15'
     process.env.DD_GRPC_SERVER_ERROR_STATUSES = '2,10,13-15'
 
-    config = new Config()
+    config = getConfig()
 
     expect(config.grpc.client.error.statuses).to.deep.equal([2, 10, 13, 14, 15])
     expect(config.grpc.server.error.statuses).to.deep.equal([2, 10, 13, 14, 15])
@@ -1392,38 +1394,38 @@ describe('Config', () => {
     it('should activate peer service only if explicitly true in v0', () => {
       process.env.DD_TRACE_SPAN_ATTRIBUTE_SCHEMA = 'v0'
       process.env.DD_TRACE_PEER_SERVICE_DEFAULTS_ENABLED = 'true'
-      let config = new Config()
+      let config = getConfig()
       expect(config).to.have.property('spanComputePeerService', true)
 
       process.env.DD_TRACE_PEER_SERVICE_DEFAULTS_ENABLED = 'foo'
-      config = new Config()
+      config = getConfig()
       expect(config).to.have.property('spanComputePeerService', false)
 
       process.env.DD_TRACE_PEER_SERVICE_DEFAULTS_ENABLED = 'false'
-      config = new Config()
+      config = getConfig()
       expect(config).to.have.property('spanComputePeerService', false)
 
       delete process.env.DD_TRACE_PEER_SERVICE_DEFAULTS_ENABLED
-      config = new Config()
+      config = getConfig()
       expect(config).to.have.property('spanComputePeerService', false)
     })
 
     it('should activate peer service in v1 unless explicitly false', () => {
       process.env.DD_TRACE_SPAN_ATTRIBUTE_SCHEMA = 'v1'
       process.env.DD_TRACE_PEER_SERVICE_DEFAULTS_ENABLED = 'false'
-      let config = new Config()
+      let config = getConfig()
       expect(config).to.have.property('spanComputePeerService', false)
 
       process.env.DD_TRACE_PEER_SERVICE_DEFAULTS_ENABLED = 'foo'
-      config = new Config()
+      config = getConfig()
       expect(config).to.have.property('spanComputePeerService', true)
 
       process.env.DD_TRACE_PEER_SERVICE_DEFAULTS_ENABLED = 'true'
-      config = new Config()
+      config = getConfig()
       expect(config).to.have.property('spanComputePeerService', true)
 
       delete process.env.DD_TRACE_PEER_SERVICE_DEFAULTS_ENABLED
-      config = new Config()
+      config = getConfig()
       expect(config).to.have.property('spanComputePeerService', true)
     })
   })
@@ -1434,7 +1436,7 @@ describe('Config', () => {
     process.env.DD_TRACE_GLOBAL_TAGS = 'foo:foo'
     process.env.DD_TAGS = 'foo:bar,baz:qux'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.property('hostname', 'agent')
     expect(config.tags).to.include({ foo: 'foo', baz: 'qux' })
@@ -1518,7 +1520,7 @@ describe('Config', () => {
     process.env.DD_TRACE_SPAN_ATTRIBUTE_SCHEMA = 'v0'
     process.env.DD_VERSION = '0.0.0'
 
-    const config = new Config({
+    const config = getConfig({
       apmTracingEnabled: true,
       appsec: {
         apiSecurity: {
@@ -1725,7 +1727,7 @@ describe('Config', () => {
   })
 
   it('should give priority to non-experimental options', () => {
-    const config = new Config({
+    const config = getConfig({
       appsec: {
         apiSecurity: {
           enabled: true,
@@ -1879,7 +1881,7 @@ describe('Config', () => {
     process.env.DD_SERVICE_NAME = 'service'
     process.env.DD_ENV = 'test'
 
-    const config = new Config({
+    const config = getConfig({
       url: 'https://agent3:7778',
       protocol: 'http',
       hostname: 'server',
@@ -1901,7 +1903,7 @@ describe('Config', () => {
     process.env.DD_VERSION = '1.0.0'
     process.env.DD_TAGS = 'service=foo,env=bar,version=0.0.0'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.tags).to.include({
       service: 'test',
@@ -1911,15 +1913,15 @@ describe('Config', () => {
   })
 
   it('should sanitize the sample rate to be between 0 and 1', () => {
-    expect(new Config({ sampleRate: -1 })).to.have.property('sampleRate', 0)
-    expect(new Config({ sampleRate: 2 })).to.have.property('sampleRate', 1)
-    expect(new Config({ sampleRate: NaN })).to.have.property('sampleRate', undefined)
+    expect(getConfig({ sampleRate: -1 })).to.have.property('sampleRate', 0)
+    expect(getConfig({ sampleRate: 2 })).to.have.property('sampleRate', 1)
+    expect(getConfig({ sampleRate: NaN })).to.have.property('sampleRate', undefined)
   })
 
   it('should ignore empty service names', () => {
     process.env.DD_SERVICE = ''
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.tags).to.include({
       service: 'node'
@@ -1927,7 +1929,7 @@ describe('Config', () => {
   })
 
   it('should support tags for setting primary fields', () => {
-    const config = new Config({
+    const config = getConfig({
       tags: {
         service: 'service',
         env: 'test',
@@ -1943,14 +1945,14 @@ describe('Config', () => {
   it('should trim whitespace characters around keys', () => {
     process.env.DD_TAGS = 'foo:bar, baz:qux'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.tags).to.include({ foo: 'bar', baz: 'qux' })
   })
 
   it('should not transform the lookup parameter', () => {
     const lookup = () => 'test'
-    const config = new Config({ lookup })
+    const config = getConfig({ lookup })
 
     expect(config.lookup).to.equal(lookup)
   })
@@ -1958,7 +1960,7 @@ describe('Config', () => {
   it('should not set DD_INSTRUMENTATION_TELEMETRY_ENABLED if AWS_LAMBDA_FUNCTION_NAME is present', () => {
     process.env.AWS_LAMBDA_FUNCTION_NAME = 'my-great-lambda-function'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.telemetry.enabled).to.be.false
   })
@@ -1968,7 +1970,7 @@ describe('Config', () => {
     process.env.FUNCTION_NAME = 'function_name'
     process.env.GCP_PROJECT = 'project_name'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.telemetry.enabled).to.be.false
   })
@@ -1978,7 +1980,7 @@ describe('Config', () => {
     process.env.K_SERVICE = 'function_name'
     process.env.FUNCTION_TARGET = 'function_target'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.telemetry.enabled).to.be.false
   })
@@ -1989,13 +1991,13 @@ describe('Config', () => {
     process.env.FUNCTIONS_EXTENSION_VERSION = '4'
     process.env.WEBSITE_SKU = 'Dynamic'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.telemetry.enabled).to.be.false
   })
 
   it('should set telemetry default values', () => {
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.telemetry).to.not.be.undefined
     expect(config.telemetry.enabled).to.be.true
@@ -2009,7 +2011,7 @@ describe('Config', () => {
     const origTelemetryHeartbeatIntervalValue = process.env.DD_TELEMETRY_HEARTBEAT_INTERVAL
     process.env.DD_TELEMETRY_HEARTBEAT_INTERVAL = '42'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.telemetry.heartbeatInterval).to.eq(42000)
 
@@ -2020,7 +2022,7 @@ describe('Config', () => {
     const origTraceTelemetryValue = process.env.DD_INSTRUMENTATION_TELEMETRY_ENABLED
     process.env.DD_INSTRUMENTATION_TELEMETRY_ENABLED = 'false'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.telemetry.enabled).to.be.false
 
@@ -2031,7 +2033,7 @@ describe('Config', () => {
     const origTelemetryMetricsEnabledValue = process.env.DD_TELEMETRY_METRICS_ENABLED
     process.env.DD_TELEMETRY_METRICS_ENABLED = 'false'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.telemetry.metrics).to.be.false
 
@@ -2042,7 +2044,7 @@ describe('Config', () => {
     const origLogsValue = process.env.DD_TELEMETRY_LOG_COLLECTION_ENABLED
     process.env.DD_TELEMETRY_LOG_COLLECTION_ENABLED = 'false'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.telemetry.logCollection).to.be.false
 
@@ -2053,7 +2055,7 @@ describe('Config', () => {
     const origTelemetryDebugValue = process.env.DD_TELEMETRY_DEBUG
     process.env.DD_TELEMETRY_DEBUG = 'true'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.telemetry.debug).to.be.true
 
@@ -2063,7 +2065,7 @@ describe('Config', () => {
   it('should not set DD_REMOTE_CONFIGURATION_ENABLED if AWS_LAMBDA_FUNCTION_NAME is present', () => {
     process.env.AWS_LAMBDA_FUNCTION_NAME = 'my-great-lambda-function'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.remoteConfig.enabled).to.be.false
   })
@@ -2072,7 +2074,7 @@ describe('Config', () => {
     process.env.FUNCTION_NAME = 'function_name'
     process.env.GCP_PROJECT = 'project_name'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.remoteConfig.enabled).to.be.false
   })
@@ -2081,7 +2083,7 @@ describe('Config', () => {
     process.env.K_SERVICE = 'function_name'
     process.env.FUNCTION_TARGET = 'function_target'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.remoteConfig.enabled).to.be.false
   })
@@ -2091,13 +2093,13 @@ describe('Config', () => {
     process.env.FUNCTIONS_EXTENSION_VERSION = '4'
     process.env.WEBSITE_SKU = 'Dynamic'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.remoteConfig.enabled).to.be.false
   })
 
   it('should send empty array when remote config is called on empty options', () => {
-    const config = new Config()
+    const config = getConfig()
 
     config.configure({}, true)
 
@@ -2106,7 +2108,7 @@ describe('Config', () => {
   })
 
   it('should send remote config changes to telemetry', () => {
-    const config = new Config()
+    const config = getConfig()
 
     config.configure({
       tracing_sampling_rate: 0
@@ -2118,7 +2120,7 @@ describe('Config', () => {
   })
 
   it('should reformat tags from sampling rules when set through remote configuration', () => {
-    const config = new Config()
+    const config = getConfig()
 
     config.configure({
       tracing_sampling_rules: [
@@ -2147,7 +2149,7 @@ describe('Config', () => {
   })
 
   it('should have consistent runtime-id after remote configuration updates tags', () => {
-    const config = new Config()
+    const config = getConfig()
     const runtimeId = config.tags['runtime-id']
     config.configure({
       tracing_tags: { foo: 'bar' }
@@ -2158,7 +2160,7 @@ describe('Config', () => {
   })
 
   it('should ignore invalid iast.requestSampling', () => {
-    const config = new Config({
+    const config = getConfig({
       experimental: {
         iast: {
           requestSampling: 105
@@ -2172,7 +2174,7 @@ describe('Config', () => {
     const path = './fixtures/config/span-sampling-rules.json'
     process.env.DD_SPAN_SAMPLING_RULES_FILE = require.resolve(path)
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.sampler).to.have.deep.nested.property('spanSamplingRules', [
       { service: 'mysql', name: 'mysql.query', sampleRate: 0.0, maxPerSecond: 1 },
@@ -2186,7 +2188,7 @@ describe('Config', () => {
     const error = new Error('file not found')
     fs.readFileSync = () => { throw error }
 
-    const config = new Config({
+    const config = getConfig({
       appsec: {
         enabled: true,
         rules: 'path/to/rules.json',
@@ -2214,7 +2216,7 @@ describe('Config', () => {
   it('should enable api security with DD_EXPERIMENTAL_API_SECURITY_ENABLED', () => {
     process.env.DD_EXPERIMENTAL_API_SECURITY_ENABLED = 'true'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.appsec.apiSecurity.enabled).to.be.true
   })
@@ -2222,7 +2224,7 @@ describe('Config', () => {
   it('should disable api security with DD_EXPERIMENTAL_API_SECURITY_ENABLED', () => {
     process.env.DD_EXPERIMENTAL_API_SECURITY_ENABLED = 'false'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.appsec.apiSecurity.enabled).to.be.false
   })
@@ -2231,7 +2233,7 @@ describe('Config', () => {
     process.env.DD_EXPERIMENTAL_API_SECURITY_ENABLED = 'false'
     process.env.DD_API_SECURITY_ENABLED = 'true'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config.appsec.apiSecurity.enabled).to.be.true
   })
@@ -2240,7 +2242,7 @@ describe('Config', () => {
     process.env.DD_DOGSTATSD_HOSTNAME = 'dsd-agent'
     process.env.DD_DOGSTATSD_HOST = 'localhost'
 
-    const config = new Config()
+    const config = getConfig()
 
     expect(config).to.have.nested.property('dogstatsd.hostname', 'localhost')
   })
@@ -2249,14 +2251,14 @@ describe('Config', () => {
     context('on windows', () => {
       it('should not be used', () => {
         osType = 'Windows_NT'
-        const config = new Config()
+        const config = getConfig()
 
         expect(config.url).to.be.undefined
       })
     })
     context('socket does not exist', () => {
       it('should not be used', () => {
-        const config = new Config()
+        const config = getConfig()
 
         expect(config.url).to.be.undefined
       })
@@ -2267,7 +2269,7 @@ describe('Config', () => {
       })
 
       it('should be used when no options and no env vars', () => {
-        const config = new Config()
+        const config = getConfig()
 
         expect(existsSyncParam).to.equal('/var/run/datadog/apm.socket')
         expect(config.url.toString()).to.equal('unix:///var/run/datadog/apm.socket')
@@ -2276,7 +2278,7 @@ describe('Config', () => {
       it('should not be used when DD_TRACE_AGENT_URL provided', () => {
         process.env.DD_TRACE_AGENT_URL = 'https://example.com/'
 
-        const config = new Config()
+        const config = getConfig()
 
         expect(config.url.toString()).to.equal('https://example.com/')
       })
@@ -2284,13 +2286,13 @@ describe('Config', () => {
       it('should not be used when DD_TRACE_URL provided', () => {
         process.env.DD_TRACE_URL = 'https://example.com/'
 
-        const config = new Config()
+        const config = getConfig()
 
         expect(config.url.toString()).to.equal('https://example.com/')
       })
 
       it('should not be used when options.url provided', () => {
-        const config = new Config({ url: 'https://example.com/' })
+        const config = getConfig({ url: 'https://example.com/' })
 
         expect(config.url.toString()).to.equal('https://example.com/')
       })
@@ -2298,13 +2300,13 @@ describe('Config', () => {
       it('should not be used when DD_TRACE_AGENT_PORT provided', () => {
         process.env.DD_TRACE_AGENT_PORT = '12345'
 
-        const config = new Config()
+        const config = getConfig()
 
         expect(config.url).to.be.undefined
       })
 
       it('should not be used when options.port provided', () => {
-        const config = new Config({ port: 12345 })
+        const config = getConfig({ port: 12345 })
 
         expect(config.url).to.be.undefined
       })
@@ -2312,7 +2314,7 @@ describe('Config', () => {
       it('should not be used when DD_TRACE_AGENT_HOSTNAME provided', () => {
         process.env.DD_TRACE_AGENT_HOSTNAME = 'example.com'
 
-        const config = new Config()
+        const config = getConfig()
 
         expect(config.url).to.be.undefined
       })
@@ -2320,13 +2322,13 @@ describe('Config', () => {
       it('should not be used when DD_AGENT_HOST provided', () => {
         process.env.DD_AGENT_HOST = 'example.com'
 
-        const config = new Config()
+        const config = getConfig()
 
         expect(config.url).to.be.undefined
       })
 
       it('should not be used when options.hostname provided', () => {
-        const config = new Config({ hostname: 'example.com' })
+        const config = getConfig({ hostname: 'example.com' })
 
         expect(config.url).to.be.undefined
       })
@@ -2353,104 +2355,104 @@ describe('Config', () => {
         options = { isCiVisibility: true }
       })
       it('should activate git upload by default', () => {
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('isGitUploadEnabled', true)
       })
       it('should disable git upload if the DD_CIVISIBILITY_GIT_UPLOAD_ENABLED is set to false', () => {
         process.env.DD_CIVISIBILITY_GIT_UPLOAD_ENABLED = 'false'
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('isGitUploadEnabled', false)
       })
       it('should activate ITR by default', () => {
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('isIntelligentTestRunnerEnabled', true)
       })
       it('should disable ITR if DD_CIVISIBILITY_ITR_ENABLED is set to false', () => {
         process.env.DD_CIVISIBILITY_ITR_ENABLED = 'false'
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('isIntelligentTestRunnerEnabled', false)
       })
       it('should enable manual testing API by default', () => {
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('isManualApiEnabled', true)
       })
       it('should disable manual testing API if DD_CIVISIBILITY_MANUAL_API_ENABLED is set to false', () => {
         process.env.DD_CIVISIBILITY_MANUAL_API_ENABLED = 'false'
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('isManualApiEnabled', false)
       })
       it('should disable memcached command tagging by default', () => {
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('memcachedCommandEnabled', false)
       })
       it('should enable memcached command tagging if DD_TRACE_MEMCACHED_COMMAND_ENABLED is enabled', () => {
         process.env.DD_TRACE_MEMCACHED_COMMAND_ENABLED = 'true'
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('memcachedCommandEnabled', true)
       })
       it('should enable telemetry', () => {
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.nested.property('telemetry.enabled', true)
       })
       it('should enable early flake detection by default', () => {
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('isEarlyFlakeDetectionEnabled', true)
       })
       it('should disable early flake detection if DD_CIVISIBILITY_EARLY_FLAKE_DETECTION_ENABLED is false', () => {
         process.env.DD_CIVISIBILITY_EARLY_FLAKE_DETECTION_ENABLED = 'false'
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('isEarlyFlakeDetectionEnabled', false)
       })
       it('should enable flaky test retries by default', () => {
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('isFlakyTestRetriesEnabled', true)
       })
       it('should disable flaky test retries if isFlakyTestRetriesEnabled is false', () => {
         process.env.DD_CIVISIBILITY_FLAKY_RETRY_ENABLED = 'false'
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('isFlakyTestRetriesEnabled', false)
       })
       it('should read DD_CIVISIBILITY_FLAKY_RETRY_COUNT if present', () => {
         process.env.DD_CIVISIBILITY_FLAKY_RETRY_COUNT = '4'
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('flakyTestRetriesCount', 4)
       })
       it('should default DD_CIVISIBILITY_FLAKY_RETRY_COUNT to 5', () => {
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('flakyTestRetriesCount', 5)
       })
       it('should round non integer values of DD_CIVISIBILITY_FLAKY_RETRY_COUNT', () => {
         process.env.DD_CIVISIBILITY_FLAKY_RETRY_COUNT = '4.1'
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('flakyTestRetriesCount', 4)
       })
       it('should set the default to DD_CIVISIBILITY_FLAKY_RETRY_COUNT if it is not a number', () => {
         process.env.DD_CIVISIBILITY_FLAKY_RETRY_COUNT = 'a'
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('flakyTestRetriesCount', 5)
       })
       it('should set the session name if DD_TEST_SESSION_NAME is set', () => {
         process.env.DD_TEST_SESSION_NAME = 'my-test-session'
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('ciVisibilityTestSessionName', 'my-test-session')
       })
       it('should not enable agentless log submission by default', () => {
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('ciVisAgentlessLogSubmissionEnabled', false)
       })
       it('should enable agentless log submission if DD_AGENTLESS_LOG_SUBMISSION_ENABLED is true', () => {
         process.env.DD_AGENTLESS_LOG_SUBMISSION_ENABLED = 'true'
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('ciVisAgentlessLogSubmissionEnabled', true)
       })
       it('should set isTestDynamicInstrumentationEnabled by default', () => {
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('isTestDynamicInstrumentationEnabled', true)
       })
       it('should set isTestDynamicInstrumentationEnabled to false if DD_TEST_FAILED_TEST_REPLAY_ENABLED is false',
         () => {
           process.env.DD_TEST_FAILED_TEST_REPLAY_ENABLED = 'false'
-          const config = new Config(options)
+          const config = getConfig(options)
           expect(config).to.have.property('isTestDynamicInstrumentationEnabled', false)
         })
     })
@@ -2458,14 +2460,14 @@ describe('Config', () => {
       it('should not activate intelligent test runner or git metadata upload', () => {
         process.env.DD_CIVISIBILITY_ITR_ENABLED = 'true'
         process.env.DD_CIVISIBILITY_GIT_UPLOAD_ENABLED = 'true'
-        const config = new Config(options)
+        const config = getConfig(options)
         expect(config).to.have.property('isIntelligentTestRunnerEnabled', false)
         expect(config).to.have.property('isGitUploadEnabled', false)
       })
     })
     it('disables telemetry if inside a jest worker', () => {
       process.env.JEST_WORKER_ID = '1'
-      const config = new Config(options)
+      const config = getConfig(options)
       expect(config.telemetry.enabled).to.be.false
     })
   })
@@ -2490,32 +2492,32 @@ describe('Config', () => {
     it('reads DD_GIT_* env vars', () => {
       process.env.DD_GIT_COMMIT_SHA = DUMMY_COMMIT_SHA
       process.env.DD_GIT_REPOSITORY_URL = DUMMY_REPOSITORY_URL
-      const config = new Config({})
+      const config = getConfig({})
       expect(config).to.have.property('commitSHA', DUMMY_COMMIT_SHA)
       expect(config).to.have.property('repositoryUrl', DUMMY_REPOSITORY_URL)
     })
     it('reads DD_GIT_* env vars and filters out user data', () => {
       process.env.DD_GIT_REPOSITORY_URL = 'https://user:password@github.com/DataDog/dd-trace-js.git'
-      const config = new Config({})
+      const config = getConfig({})
       expect(config).to.have.property('repositoryUrl', 'https://github.com/DataDog/dd-trace-js.git')
     })
     it('reads DD_TAGS env var', () => {
       process.env.DD_TAGS = `git.commit.sha:${DUMMY_COMMIT_SHA},git.repository_url:${DUMMY_REPOSITORY_URL}`
       process.env.DD_GIT_REPOSITORY_URL = DUMMY_REPOSITORY_URL
-      const config = new Config({})
+      const config = getConfig({})
       expect(config).to.have.property('commitSHA', DUMMY_COMMIT_SHA)
       expect(config).to.have.property('repositoryUrl', DUMMY_REPOSITORY_URL)
     })
     it('reads git.properties if it is available', () => {
       process.env.DD_GIT_PROPERTIES_FILE = DD_GIT_PROPERTIES_FILE
-      const config = new Config({})
+      const config = getConfig({})
       expect(config).to.have.property('commitSHA', '4e7da8069bcf5ffc8023603b95653e2dc99d1c7d')
       expect(config).to.have.property('repositoryUrl', DUMMY_REPOSITORY_URL)
     })
     it('does not crash if git.properties is not available', () => {
       process.env.DD_GIT_PROPERTIES_FILE = '/does/not/exist'
       expect(() => {
-        const config = new Config({})
+        const config = getConfig({})
         expect(config).to.be.an('object')
       }).to.not.throw()
     })
@@ -2523,39 +2525,39 @@ describe('Config', () => {
       process.env.DD_GIT_PROPERTIES_FILE = DD_GIT_PROPERTIES_FILE
       process.env.DD_GIT_COMMIT_SHA = DUMMY_COMMIT_SHA
       process.env.DD_GIT_REPOSITORY_URL = 'https://github.com:DataDog/dd-trace-js.git'
-      const config = new Config({})
+      const config = getConfig({})
       expect(config).to.have.property('commitSHA', DUMMY_COMMIT_SHA)
       expect(config).to.have.property('repositoryUrl', 'https://github.com:DataDog/dd-trace-js.git')
     })
     it('still reads git.properties if one of the env vars is missing', () => {
       process.env.DD_GIT_PROPERTIES_FILE = DD_GIT_PROPERTIES_FILE
       process.env.DD_GIT_COMMIT_SHA = DUMMY_COMMIT_SHA
-      const config = new Config({})
+      const config = getConfig({})
       expect(config).to.have.property('commitSHA', DUMMY_COMMIT_SHA)
       expect(config).to.have.property('repositoryUrl', DUMMY_REPOSITORY_URL)
     })
     it('reads git.properties and filters out credentials', () => {
       process.env.DD_GIT_PROPERTIES_FILE = require.resolve('./fixtures/config/git.properties.credentials')
-      const config = new Config({})
+      const config = getConfig({})
       expect(config).to.have.property('commitSHA', '4e7da8069bcf5ffc8023603b95653e2dc99d1c7d')
       expect(config).to.have.property('repositoryUrl', 'https://github.com/datadog/dd-trace-js')
     })
     it('does not read git metadata if DD_TRACE_GIT_METADATA_ENABLED is false', () => {
       process.env.DD_TRACE_GIT_METADATA_ENABLED = 'false'
-      const config = new Config({})
+      const config = getConfig({})
       expect(config).not.to.have.property('commitSHA')
       expect(config).not.to.have.property('repositoryUrl')
     })
     it('reads .git/ folder if it is available', () => {
       process.env.DD_GIT_FOLDER_PATH = DD_GIT_FOLDER_PATH
-      const config = new Config({})
+      const config = getConfig({})
       expect(config).to.have.property('repositoryUrl', 'git@github.com:DataDog/dd-trace-js.git')
       expect(config).to.have.property('commitSHA', '964886d9ec0c9fc68778e4abb0aab4d9982ce2b5')
     })
     it('does not crash if .git/ folder is not available', () => {
       process.env.DD_GIT_FOLDER_PATH = '/does/not/exist/'
       expect(() => {
-        const config = new Config({})
+        const config = getConfig({})
         expect(config).to.be.an('object')
       }).to.not.throw()
     })
@@ -2563,14 +2565,14 @@ describe('Config', () => {
       process.env.DD_GIT_FOLDER_PATH = DD_GIT_FOLDER_PATH
       process.env.DD_GIT_COMMIT_SHA = DUMMY_COMMIT_SHA
       process.env.DD_GIT_REPOSITORY_URL = 'https://github.com:DataDog/dd-trace-js.git'
-      const config = new Config({})
+      const config = getConfig({})
       expect(config).to.have.property('commitSHA', DUMMY_COMMIT_SHA)
       expect(config).to.have.property('repositoryUrl', 'https://github.com:DataDog/dd-trace-js.git')
     })
     it('still reads .git/ if one of the env vars is missing', () => {
       process.env.DD_GIT_FOLDER_PATH = DD_GIT_FOLDER_PATH
       process.env.DD_GIT_REPOSITORY_URL = 'git@github.com:DataDog/dummy-dd-trace-js.git'
-      const config = new Config({})
+      const config = getConfig({})
       expect(config).to.have.property('commitSHA', '964886d9ec0c9fc68778e4abb0aab4d9982ce2b5')
       expect(config).to.have.property('repositoryUrl', 'git@github.com:DataDog/dummy-dd-trace-js.git')
     })
@@ -2578,7 +2580,7 @@ describe('Config', () => {
 
   context('llmobs config', () => {
     it('should disable llmobs by default', () => {
-      const config = new Config()
+      const config = getConfig()
       expect(config.llmobs.enabled).to.be.false
 
       // check origin computation
@@ -2589,7 +2591,7 @@ describe('Config', () => {
 
     it('should enable llmobs if DD_LLMOBS_ENABLED is set to true', () => {
       process.env.DD_LLMOBS_ENABLED = 'true'
-      const config = new Config()
+      const config = getConfig()
       expect(config.llmobs.enabled).to.be.true
 
       // check origin computation
@@ -2600,7 +2602,7 @@ describe('Config', () => {
 
     it('should disable llmobs if DD_LLMOBS_ENABLED is set to false', () => {
       process.env.DD_LLMOBS_ENABLED = 'false'
-      const config = new Config()
+      const config = getConfig()
       expect(config.llmobs.enabled).to.be.false
 
       // check origin computation
@@ -2610,7 +2612,7 @@ describe('Config', () => {
     })
 
     it('should enable llmobs with options and DD_LLMOBS_ENABLED is not set', () => {
-      const config = new Config({ llmobs: {} })
+      const config = getConfig({ llmobs: {} })
       expect(config.llmobs.enabled).to.be.true
 
       // check origin computation
@@ -2621,7 +2623,7 @@ describe('Config', () => {
 
     it('should have DD_LLMOBS_ENABLED take priority over options', () => {
       process.env.DD_LLMOBS_ENABLED = 'false'
-      const config = new Config({ llmobs: {} })
+      const config = getConfig({ llmobs: {} })
       expect(config.llmobs.enabled).to.be.false
 
       // check origin computation
@@ -2645,7 +2647,7 @@ describe('Config', () => {
     })
 
     it('defaults', () => {
-      const taggingConfig = new Config().cloudPayloadTagging
+      const taggingConfig = getConfig().cloudPayloadTagging
       expect(taggingConfig).to.have.property('requestsEnabled', false)
       expect(taggingConfig).to.have.property('responsesEnabled', false)
       expect(taggingConfig).to.have.property('maxDepth', 10)
@@ -2653,7 +2655,7 @@ describe('Config', () => {
 
     it('enabling requests with no additional filter', () => {
       process.env.DD_TRACE_CLOUD_REQUEST_PAYLOAD_TAGGING = 'all'
-      const taggingConfig = new Config().cloudPayloadTagging
+      const taggingConfig = getConfig().cloudPayloadTagging
       expect(taggingConfig).to.have.property('requestsEnabled', true)
       expect(taggingConfig).to.have.property('responsesEnabled', false)
       expect(taggingConfig).to.have.property('maxDepth', 10)
@@ -2665,7 +2667,7 @@ describe('Config', () => {
 
     it('enabling requests with an additional filter', () => {
       process.env.DD_TRACE_CLOUD_REQUEST_PAYLOAD_TAGGING = '$.foo.bar'
-      const taggingConfig = new Config().cloudPayloadTagging
+      const taggingConfig = getConfig().cloudPayloadTagging
       expect(taggingConfig).to.have.property('requestsEnabled', true)
       expect(taggingConfig).to.have.property('responsesEnabled', false)
       expect(taggingConfig).to.have.property('maxDepth', 10)
@@ -2677,7 +2679,7 @@ describe('Config', () => {
 
     it('enabling responses with no additional filter', () => {
       process.env.DD_TRACE_CLOUD_RESPONSE_PAYLOAD_TAGGING = 'all'
-      const taggingConfig = new Config().cloudPayloadTagging
+      const taggingConfig = getConfig().cloudPayloadTagging
       expect(taggingConfig).to.have.property('requestsEnabled', false)
       expect(taggingConfig).to.have.property('responsesEnabled', true)
       expect(taggingConfig).to.have.property('maxDepth', 10)
@@ -2689,7 +2691,7 @@ describe('Config', () => {
 
     it('enabling responses with an additional filter', () => {
       process.env.DD_TRACE_CLOUD_RESPONSE_PAYLOAD_TAGGING = '$.foo.bar'
-      const taggingConfig = new Config().cloudPayloadTagging
+      const taggingConfig = getConfig().cloudPayloadTagging
       expect(taggingConfig).to.have.property('requestsEnabled', false)
       expect(taggingConfig).to.have.property('responsesEnabled', true)
       expect(taggingConfig).to.have.property('maxDepth', 10)
@@ -2704,7 +2706,7 @@ describe('Config', () => {
       process.env.DD_TRACE_CLOUD_RESPONSE_PAYLOAD_TAGGING = 'all'
       process.env.DD_TRACE_CLOUD_PAYLOAD_TAGGING_MAX_DEPTH = '7'
 
-      let { cloudPayloadTagging } = new Config()
+      let { cloudPayloadTagging } = getConfig()
       assertObjectContains(cloudPayloadTagging, {
         maxDepth: 7,
         requestsEnabled: true,
@@ -2713,7 +2715,7 @@ describe('Config', () => {
 
       delete process.env.DD_TRACE_CLOUD_PAYLOAD_TAGGING_MAX_DEPTH
 
-      ;({ cloudPayloadTagging } = new Config({ cloudPayloadTagging: { maxDepth: 7 } }))
+      ;({ cloudPayloadTagging } = getConfig({ cloudPayloadTagging: { maxDepth: 7 } }))
       assertObjectContains(cloudPayloadTagging, {
         maxDepth: 7,
         requestsEnabled: true,
@@ -2724,14 +2726,14 @@ describe('Config', () => {
     it('use default max depth if max depth is not a number', () => {
       process.env.DD_TRACE_CLOUD_PAYLOAD_TAGGING_MAX_DEPTH = 'abc'
 
-      let { cloudPayloadTagging } = new Config()
+      let { cloudPayloadTagging } = getConfig()
       assertObjectContains(cloudPayloadTagging, {
         maxDepth: 10,
       })
 
       delete process.env.DD_TRACE_CLOUD_PAYLOAD_TAGGING_MAX_DEPTH
 
-      ;({ cloudPayloadTagging } = new Config({ cloudPayloadTagging: { maxDepth: NaN } }))
+      ;({ cloudPayloadTagging } = getConfig({ cloudPayloadTagging: { maxDepth: NaN } }))
       assertObjectContains(cloudPayloadTagging, {
         maxDepth: 10,
       })
@@ -2742,7 +2744,7 @@ describe('Config', () => {
     it('should disable apm tracing with legacy DD_EXPERIMENTAL_APPSEC_STANDALONE_ENABLED', () => {
       process.env.DD_EXPERIMENTAL_APPSEC_STANDALONE_ENABLED = '1'
 
-      const config = new Config()
+      const config = getConfig()
       expect(config).to.have.property('apmTracingEnabled', false)
     })
 
@@ -2750,21 +2752,21 @@ describe('Config', () => {
       process.env.DD_APM_TRACING_ENABLED = '1'
       process.env.DD_EXPERIMENTAL_APPSEC_STANDALONE_ENABLED = 'true'
 
-      const config = new Config()
+      const config = getConfig()
       expect(config).to.have.property('apmTracingEnabled', true)
     })
 
     it('should disable apm tracing with legacy experimental.appsec.standalone.enabled option', () => {
       process.env.DD_EXPERIMENTAL_APPSEC_STANDALONE_ENABLED = '0'
 
-      const config = new Config({ experimental: { appsec: { standalone: { enabled: true } } } })
+      const config = getConfig({ experimental: { appsec: { standalone: { enabled: true } } } })
       expect(config).to.have.property('apmTracingEnabled', false)
     })
 
     it('should win apmTracingEnabled option', () => {
       process.env.DD_EXPERIMENTAL_APPSEC_STANDALONE_ENABLED = 'true'
 
-      const config = new Config({
+      const config = getConfig({
         apmTracingEnabled: false,
         experimental: { appsec: { standalone: { enabled: true } } }
       })
@@ -2774,7 +2776,7 @@ describe('Config', () => {
     it('should not affect stats', () => {
       process.env.DD_TRACE_STATS_COMPUTATION_ENABLED = 'true'
 
-      const config = new Config()
+      const config = getConfig()
       expect(config).to.have.property('apmTracingEnabled', true)
       expect(config).to.have.nested.property('stats.enabled', true)
 
@@ -2787,7 +2789,7 @@ describe('Config', () => {
       process.env.DD_APM_TRACING_ENABLED = 'false'
       process.env.DD_TRACE_STATS_COMPUTATION_ENABLED = 'true'
 
-      const config = new Config()
+      const config = getConfig()
       expect(config).to.have.property('apmTracingEnabled', false)
       expect(config).to.have.nested.property('stats.enabled', false)
 
@@ -2797,7 +2799,7 @@ describe('Config', () => {
     })
 
     it('should disable stats if config property is used', () => {
-      const config = new Config({
+      const config = getConfig({
         apmTracingEnabled: false
       })
       expect(config).to.have.property('apmTracingEnabled', false)
@@ -2831,7 +2833,7 @@ describe('Config', () => {
 apm_configuration_default:
   DD_RUNTIME_METRICS_ENABLED: true
 `)
-      const config = new Config()
+      const config = getConfig()
       expect(config).to.have.nested.property('runtimeMetrics.enabled', true)
     })
 
@@ -2848,13 +2850,13 @@ rules:
     configuration:
       DD_SERVICE: my-service
 `)
-      const config = new Config()
+      const config = getConfig()
       expect(config).to.have.property('service', 'my-service')
     })
 
     it('should respect the priority sources', () => {
       // 1. Default
-      const config1 = new Config()
+      const config1 = getConfig()
       expect(config1).to.have.property('service', 'node')
 
       // 2. Local stable > Default
@@ -2870,7 +2872,7 @@ rules:
     configuration:
       DD_SERVICE: service_local_stable
 `)
-      const config2 = new Config()
+      const config2 = getConfig()
       expect(config2).to.have.property(
         'service',
         'service_local_stable',
@@ -2879,7 +2881,7 @@ rules:
 
       // 3. Env > Local stable > Default
       process.env.DD_SERVICE = 'service_env'
-      const config3 = new Config()
+      const config3 = getConfig()
       expect(config3).to.have.property(
         'service',
         'service_env',
@@ -2899,7 +2901,7 @@ rules:
     configuration:
       DD_SERVICE: service_fleet_stable
 `)
-      const config4 = new Config()
+      const config4 = getConfig()
       expect(config4).to.have.property(
         'service',
         'service_fleet_stable',
@@ -2907,7 +2909,7 @@ rules:
       )
 
       // 5. Code > Fleet Stable > Env > Local stable > Default
-      const config5 = new Config({ service: 'service_code' })
+      const config5 = getConfig({ service: 'service_code' })
       expect(config5).to.have.property(
         'service',
         'service_code',
@@ -2926,7 +2928,7 @@ apm_configuration_default:
       const stableConfig = new StableConfig()
       expect(stableConfig.warnings).to.have.lengthOf(0)
 
-      const config = new Config()
+      const config = getConfig()
       expect(config).to.have.nested.property('runtimeMetrics.enabled', true)
     })
 
@@ -2964,7 +2966,7 @@ apm_configuration_default:
 `)
 
       process.env.AWS_LAMBDA_FUNCTION_NAME = 'my-great-lambda-function'
-      const stableConfig = new Config()
+      const stableConfig = getConfig()
       expect(stableConfig).to.not.have.property('stableConfig')
     })
 
@@ -2992,7 +2994,7 @@ apm_configuration_default:
 
   DD_DYNAMIC_INSTRUMENTATION_PROBE_FILE: "/tmp/probes"
 `)
-      const config = new Config()
+      const config = getConfig()
 
       // Tracing
       expect(config).to.have.nested.property('traceId128BitGenerationEnabled', true)
@@ -3038,7 +3040,7 @@ apm_configuration_default:
   DD_TRACE_CLOUD_REQUEST_PAYLOAD_TAGGING: "all"
   DD_TRACE_CLOUD_PAYLOAD_TAGGING_MAX_DEPTH: 5
 `)
-      let config = new Config()
+      let config = getConfig()
       expect(config).to.have.property('apiKey', 'local-api-key')
       expect(config).to.have.property('appKey', 'local-app-key')
       expect(config).to.have.nested.property('installSignature.id', 'local-install-id')
@@ -3052,7 +3054,7 @@ apm_configuration_default:
       process.env.DD_APP_KEY = 'env-app-key'
       process.env.DD_INSTRUMENTATION_INSTALL_ID = 'env-install-id'
       process.env.DD_TRACE_CLOUD_PAYLOAD_TAGGING_MAX_DEPTH = '7'
-      config = new Config()
+      config = getConfig()
       expect(config).to.have.property('apiKey', 'env-api-key')
       expect(config).to.have.property('appKey', 'env-app-key')
       expect(config).to.have.nested.property('installSignature.id', 'env-install-id')
@@ -3078,7 +3080,7 @@ rules:
       DD_TRACE_CLOUD_RESPONSE_PAYLOAD_TAGGING: "all"
       DD_TRACE_CLOUD_PAYLOAD_TAGGING_MAX_DEPTH: 15
 `)
-      config = new Config()
+      config = getConfig()
       expect(config).to.have.property('apiKey', 'fleet-api-key')
       expect(config).to.have.property('appKey', 'fleet-app-key')
       expect(config).to.have.nested.property('installSignature.id', 'fleet-install-id')
@@ -3102,7 +3104,7 @@ rules:
     })
 
     it('should return default value', () => {
-      const config = new Config()
+      const config = getConfig()
 
       expect(config.getOrigin('appsec.enabled')).to.be.equal('default')
     })
@@ -3110,13 +3112,13 @@ rules:
     it('should return env_var', () => {
       process.env.DD_APPSEC_ENABLED = 'true'
 
-      const config = new Config()
+      const config = getConfig()
 
       expect(config.getOrigin('appsec.enabled')).to.be.equal('env_var')
     })
 
     it('should return code', () => {
-      const config = new Config({
+      const config = getConfig({
         appsec: true
       })
 
diff --git a/packages/dd-trace/test/debugger/config.spec.js b/packages/dd-trace/test/debugger/config.spec.js
index a23b2bf2975..33a7d0c39cb 100644
--- a/packages/dd-trace/test/debugger/config.spec.js
+++ b/packages/dd-trace/test/debugger/config.spec.js
@@ -4,11 +4,11 @@ require('../setup/mocha')
 
 const assert = require('node:assert')
 const getDebuggerConfig = require('../../src/debugger/config')
-const Config = require('../../src/config')
+const getConfig = require('../../src/config')
 
 describe('getDebuggerConfig', function () {
   it('should only contain the allowed properties', function () {
-    const tracerConfig = new Config({
+    const tracerConfig = getConfig({
       url: new URL('http://example.com:1234')
     })
     const config = getDebuggerConfig(tracerConfig)
@@ -37,7 +37,7 @@ describe('getDebuggerConfig', function () {
   })
 
   it('should be able to send the config over a MessageChannel', function () {
-    const config = getDebuggerConfig(new Config())
+    const config = getDebuggerConfig(getConfig())
     const channel = new MessageChannel()
     channel.port1.on('message', (message) => {
       assert.deepStrictEqual(message, config)
diff --git a/packages/dd-trace/test/flare.spec.js b/packages/dd-trace/test/flare.spec.js
index c04ef2d97d0..b31343c94d2 100644
--- a/packages/dd-trace/test/flare.spec.js
+++ b/packages/dd-trace/test/flare.spec.js
@@ -1,17 +1,17 @@
 'use strict'
 
+const http = require('node:http')
+
 const { expect } = require('chai')
 const { channel } = require('dc-polyfill')
 const express = require('express')
 const upload = require('multer')()
 const proxyquire = require('proxyquire').noCallThru()
-
-const http = require('node:http')
+const { describe, it, beforeEach, afterEach } = require('tap').mocha
 
 require('./setup/core')
-const { describe, it, beforeEach, afterEach } = require('tap').mocha
 
-const Config = require('../src/config')
+const { getConfigFresh } = require('./helpers/config')
 
 const debugChannel = channel('datadog:log:debug')
 
@@ -60,7 +60,7 @@ describe('Flare', () => {
   beforeEach(createServer)
 
   beforeEach(() => {
-    tracerConfig = new Config({
+    tracerConfig = getConfigFresh({
       url: `http://127.0.0.1:${port}`
     })
 
diff --git a/packages/dd-trace/test/helpers/config.js b/packages/dd-trace/test/helpers/config.js
new file mode 100644
index 00000000000..0e83e73f4be
--- /dev/null
+++ b/packages/dd-trace/test/helpers/config.js
@@ -0,0 +1,14 @@
+'use strict'
+
+const proxyquire = require('proxyquire')
+
+// Resolve the config module from within the test package
+const CONFIG_PATH = require.resolve('../../src/config')
+
+function getConfigFresh (options) {
+  return proxyquire.noPreserveCache()(CONFIG_PATH, {})(options)
+}
+
+module.exports = {
+  getConfigFresh,
+}
diff --git a/packages/dd-trace/test/llmobs/sdk/index.spec.js b/packages/dd-trace/test/llmobs/sdk/index.spec.js
index 8f468830b41..77996165cd6 100644
--- a/packages/dd-trace/test/llmobs/sdk/index.spec.js
+++ b/packages/dd-trace/test/llmobs/sdk/index.spec.js
@@ -5,7 +5,7 @@ const { channel } = require('dc-polyfill')
 const { describe, it, beforeEach, afterEach, before, after } = require('mocha')
 const sinon = require('sinon')
 
-const Config = require('../../../src/config')
+const { getConfigFresh } = require('../../helpers/config')
 
 const LLMObsTagger = require('../../../src/llmobs/tagger')
 const LLMObsEvalMetricsWriter = require('../../../src/llmobs/writers/evaluations')
@@ -94,7 +94,7 @@ describe('sdk', () => {
 
   describe('enable', () => {
     it('enables llmobs if it is disabled', () => {
-      const config = new Config({})
+      const config = getConfigFresh({})
       const llmobsModule = {
         enable: sinon.stub(),
         disable () {}
@@ -126,7 +126,7 @@ describe('sdk', () => {
     })
 
     it('does not enable llmobs if env var conflicts', () => {
-      const config = new Config({})
+      const config = getConfigFresh({})
       const llmobsModule = {
         enable: sinon.stub()
       }
@@ -149,7 +149,7 @@ describe('sdk', () => {
         disable: sinon.stub()
       }
 
-      const config = new Config({
+      const config = getConfigFresh({
         llmobs: {}
       })
 
diff --git a/packages/dd-trace/test/opentelemetry/logs.spec.js b/packages/dd-trace/test/opentelemetry/logs.spec.js
index 84fb6c8d2d2..37ad96d83d1 100644
--- a/packages/dd-trace/test/opentelemetry/logs.spec.js
+++ b/packages/dd-trace/test/opentelemetry/logs.spec.js
@@ -13,6 +13,7 @@ const proxyquire = require('proxyquire')
 const { logs } = require('@opentelemetry/api-logs')
 const { trace, context } = require('@opentelemetry/api')
 const { protoLogsService } = require('../../src/opentelemetry/otlp/protobuf_loader').getProtobufTypes()
+const { getConfigFresh } = require('../helpers/config')
 
 describe('OpenTelemetry Logs', () => {
   let originalEnv
@@ -20,7 +21,16 @@ describe('OpenTelemetry Logs', () => {
   function setupTracer (enabled = true, maxExportBatchSize = '1') {
     process.env.DD_LOGS_OTEL_ENABLED = enabled ? 'true' : 'false'
     process.env.OTEL_BSP_MAX_EXPORT_BATCH_SIZE = maxExportBatchSize // Force immediate export
-    const tracer = require('../../')
+
+    const proxy = proxyquire.noPreserveCache()('../../src/proxy', {
+      './config': getConfigFresh,
+    })
+    const TracerProxy = proxyquire.noPreserveCache()('../../src', {
+      './proxy': proxy
+    })
+    const tracer = proxyquire.noPreserveCache()('../../', {
+      './src': TracerProxy
+    })
     tracer._initialized = false
     tracer.init()
     return { tracer, logs, loggerProvider: logs.getLoggerProvider() }
@@ -353,6 +363,7 @@ describe('OpenTelemetry Logs', () => {
 
       // Emit with an invalid severity number (999)
       logger.emit({
+        // @ts-expect-error - check invalid severity number
         severityNumber: 999,
         body: 'Test message with invalid severity'
       })
diff --git a/packages/dd-trace/test/opentracing/propagation/text_map.spec.js b/packages/dd-trace/test/opentracing/propagation/text_map.spec.js
index 077788d3a27..77063b99c94 100644
--- a/packages/dd-trace/test/opentracing/propagation/text_map.spec.js
+++ b/packages/dd-trace/test/opentracing/propagation/text_map.spec.js
@@ -7,7 +7,7 @@ const proxyquire = require('proxyquire')
 
 require('../../setup/core')
 
-const Config = require('../../../src/config')
+const { getConfigFresh } = require('../../helpers/config')
 const id = require('../../../src/id')
 const SpanContext = require('../../../src/opentracing/span_context')
 const TraceState = require('../../../src/opentracing/propagation/tracestate')
@@ -63,7 +63,7 @@ describe('TextMapPropagator', () => {
       '../../log': log,
       '../../telemetry/metrics': telemetryMetrics
     })
-    config = new Config({ tagsHeaderMaxLength: 512 })
+    config = getConfigFresh({ tagsHeaderMaxLength: 512 })
     propagator = new TextMapPropagator(config)
     textMap = {
       'x-datadog-trace-id': '123',
@@ -481,7 +481,7 @@ describe('TextMapPropagator', () => {
     })
 
     it('should extract opentracing baggage when baggage is not a propagation style ', () => {
-      config = new Config({
+      config = getConfigFresh({
         tracePropagationStyle: {
           extract: ['datadog', 'tracecontext'],
           inject: ['datadog', 'tracecontext']
@@ -500,7 +500,7 @@ describe('TextMapPropagator', () => {
     })
 
     it('should extract otel baggage items with special characters', () => {
-      config = new Config()
+      config = getConfigFresh()
       propagator = new TextMapPropagator(config)
       const carrier = {
         'x-datadog-trace-id': '123',
@@ -577,7 +577,7 @@ describe('TextMapPropagator', () => {
       })
 
       // should not add baggage when key list is empty
-      config = new Config({
+      config = getConfigFresh({
         baggageTagKeys: ''
       })
       propagator = new TextMapPropagator(config)
@@ -585,7 +585,7 @@ describe('TextMapPropagator', () => {
       expect(spanContextC._trace.tags).to.deep.equal({})
 
       // should not add baggage when key list is empty
-      config = new Config({
+      config = getConfigFresh({
         baggageTagKeys: 'customKey'
       })
       propagator = new TextMapPropagator(config)
@@ -600,7 +600,7 @@ describe('TextMapPropagator', () => {
       })
 
       // should add all baggage to span tags
-      config = new Config({
+      config = getConfigFresh({
         baggageTagKeys: '*'
       })
       propagator = new TextMapPropagator(config)
@@ -653,7 +653,7 @@ describe('TextMapPropagator', () => {
 
     it('should extract baggage when it is the only propagation style', () => {
       removeAllBaggageItems()
-      config = new Config({
+      config = getConfigFresh({
         tracePropagationStyle: {
           extract: ['baggage']
         }
@@ -1396,7 +1396,7 @@ describe('TextMapPropagator', () => {
 
       it('should reset span links when Trace_Propagation_Behavior_Extract is set to ignore', () => {
         process.env.DD_TRACE_PROPAGATION_BEHAVIOR_EXTRACT = 'ignore'
-        config = new Config({
+        config = getConfigFresh({
           tracePropagationStyle: {
             extract: ['tracecontext', 'datadog']
           }
@@ -1410,7 +1410,7 @@ describe('TextMapPropagator', () => {
 
       it('should set span link to extracted trace when Trace_Propagation_Behavior_Extract is set to restart', () => {
         process.env.DD_TRACE_PROPAGATION_BEHAVIOR_EXTRACT = 'restart'
-        config = new Config({
+        config = getConfigFresh({
           tracePropagationStyle: {
             extract: ['tracecontext', 'datadog']
           }
@@ -1428,7 +1428,7 @@ describe('TextMapPropagator', () => {
 
       it('should not extract baggage when Trace_Propagation_Behavior_Extract is set to ignore', () => {
         process.env.DD_TRACE_PROPAGATION_BEHAVIOR_EXTRACT = 'ignore'
-        config = new Config({
+        config = getConfigFresh({
           tracePropagationStyle: {
             extract: ['tracecontext', 'datadog', 'baggage']
           }
diff --git a/packages/dd-trace/test/opentracing/span.spec.js b/packages/dd-trace/test/opentracing/span.spec.js
index a5b3d807e29..acd74b223bd 100644
--- a/packages/dd-trace/test/opentracing/span.spec.js
+++ b/packages/dd-trace/test/opentracing/span.spec.js
@@ -8,7 +8,7 @@ const proxyquire = require('proxyquire')
 
 require('../setup/core')
 
-const Config = require('../../src/config')
+const getConfig = require('../../src/config')
 const TextMapPropagator = require('../../src/opentracing/propagation/text_map')
 
 const startCh = channel('dd-trace:span:start')
@@ -110,7 +110,7 @@ describe('Span', () => {
   })
 
   it('should generate new timing when the parent was extracted', () => {
-    const propagator = new TextMapPropagator(new Config())
+    const propagator = new TextMapPropagator(getConfig())
     const parent = propagator.extract({
       'x-datadog-trace-id': '1234',
       'x-datadog-parent-id': '5678'
diff --git a/packages/dd-trace/test/plugins/agent.js b/packages/dd-trace/test/plugins/agent.js
index d63816c7c1e..c6d4f0a2e98 100644
--- a/packages/dd-trace/test/plugins/agent.js
+++ b/packages/dd-trace/test/plugins/agent.js
@@ -11,6 +11,7 @@ const ritm = require('../../src/ritm')
 const { storage } = require('../../../datadog-core')
 const { assertObjectContains } = require('../../../../integration-tests/helpers')
 const { expect } = require('chai')
+const proxyquire = require('proxyquire')
 
 const traceHandlers = new Set()
 const statsHandlers = new Set()
@@ -370,6 +371,7 @@ module.exports = {
   /**
    * Load the plugin on the tracer with an optional config and start a mock agent.
    *
+   * @overload
    * @param {String|String[]} pluginNames - Name or list of names of plugins to load
    * @param {Record<string, unknown>} [config]
    * @param {Record<string, unknown>} [tracerConfig={}]
@@ -395,7 +397,17 @@ module.exports = {
 
     currentIntegrationName = getCurrentIntegrationName()
 
-    tracer = require('../..')
+    const getConfigFresh = (options) => proxyquire.noPreserveCache()('../../src/config', {})(options)
+    const proxy = proxyquire('../../src/proxy', {
+      './config': getConfigFresh
+    })
+    const TracerProxy = proxyquire('../../src', {
+      './proxy': proxy
+    })
+    tracer = proxyquire('../../', {
+      './src': TracerProxy
+    })
+
     agent = express()
     agent.use(bodyParser.raw({ limit: Infinity, type: 'application/msgpack' }))
     agent.use(bodyParser.text({ limit: Infinity, type: 'application/json' }))
@@ -514,15 +526,19 @@ module.exports = {
    * @param {Function} handler
    */
   subscribe (handler) {
-    traceHandlers.add({ handler }) // TODO: SHOULD BE .add(handler) SO WE CAN DELETE
+    traceHandlers.add({ handler })
   },
 
   /**
-   * Remove a handler (TODO: THIS DOES NOTHING)
+   * Remove a handler
    * @param {Function} handler
    */
   unsubscribe (handler) {
-    traceHandlers.delete(handler)
+    for (const traceHandler of traceHandlers) {
+      if (traceHandler.handler === handler) {
+        traceHandlers.delete(traceHandler)
+      }
+    }
   },
 
   /**
diff --git a/packages/dd-trace/test/plugins/log_plugin.spec.js b/packages/dd-trace/test/plugins/log_plugin.spec.js
index 094d64606a1..e9ee3dea026 100644
--- a/packages/dd-trace/test/plugins/log_plugin.spec.js
+++ b/packages/dd-trace/test/plugins/log_plugin.spec.js
@@ -8,7 +8,7 @@ require('../setup/core')
 
 const LogPlugin = require('../../src/plugins/log_plugin')
 const Tracer = require('../../src/tracer')
-const Config = require('../../src/config')
+const getConfig = require('../../src/config')
 
 const testLogChannel = channel('apm:test:log')
 
@@ -22,7 +22,7 @@ const config = {
   version: '1.2.3'
 }
 
-const tracer = new Tracer(new Config({
+const tracer = new Tracer(getConfig({
   logInjection: true,
   enabled: true,
   ...config
diff --git a/packages/dd-trace/test/startup-log.spec.js b/packages/dd-trace/test/startup-log.spec.js
index 6a41c409855..14afa5c953c 100644
--- a/packages/dd-trace/test/startup-log.spec.js
+++ b/packages/dd-trace/test/startup-log.spec.js
@@ -8,7 +8,7 @@ const os = require('node:os')
 
 require('./setup/core')
 
-const Config = require('../src/config')
+const { getConfigFresh } = require('./helpers/config')
 const SamplingRule = require('../src/sampling_rule')
 const tracerVersion = require('../../../package.json').version
 
@@ -125,7 +125,7 @@ describe('profiling_enabled', () => {
       } = require('../src/startup-log')
       process.env.DD_PROFILING_ENABLED = envVar
       process.env.DD_TRACE_STARTUP_LOGS = 'true'
-      setStartupLogConfig(new Config())
+      setStartupLogConfig(getConfigFresh())
       setStartupLogPluginManager({ _pluginsByName: {} })
       startupLog()
       /* eslint-disable-next-line no-console */
diff --git a/packages/dd-trace/test/tracer.spec.js b/packages/dd-trace/test/tracer.spec.js
index dcea7aac0de..e3751568bb1 100644
--- a/packages/dd-trace/test/tracer.spec.js
+++ b/packages/dd-trace/test/tracer.spec.js
@@ -8,7 +8,7 @@ require('./setup/core')
 
 const Tracer = require('../src/tracer')
 const Span = require('../src/opentracing/span')
-const Config = require('../src/config')
+const getConfig = require('../src/config')
 const tags = require('../../../ext/tags')
 const { ERROR_MESSAGE, ERROR_TYPE, ERROR_STACK } = require('../../dd-trace/src/constants')
 
@@ -23,7 +23,7 @@ describe('Tracer', () => {
   let config
 
   beforeEach(() => {
-    config = new Config({ service: 'service' })
+    config = getConfig({ service: 'service' })
 
     tracer = new Tracer(config)
     tracer._exporter.setUrl = sinon.stub()