vercel · haydenbleasel · Mar 11, 2026 · Mar 11, 2026
diff --git a/.changeset/add-whatsapp-adapter.md b/.changeset/add-whatsapp-adapter.md
diff --git a/.changeset/fix-telegram-dm-reply.md b/.changeset/fix-telegram-dm-reply.md
diff --git a/packages/adapter-discord/CHANGELOG.md b/packages/adapter-discord/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @chat-adapter/discord
 
+## 4.20.0
+
+### Patch Changes
+
+- chat@4.20.0
+- @chat-adapter/shared@4.20.0
+
 ## 4.19.0
 
 ### Patch Changes

diff --git a/packages/adapter-discord/package.json b/packages/adapter-discord/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chat-adapter/discord",
-  "version": "4.19.0",
+  "version": "4.20.0",
   "description": "Discord adapter for chat",
   "type": "module",
   "main": "./dist/index.js",

diff --git a/packages/adapter-gchat/CHANGELOG.md b/packages/adapter-gchat/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @chat-adapter/gchat
 
+## 4.20.0
+
+### Patch Changes
+
+- chat@4.20.0
+- @chat-adapter/shared@4.20.0
+
 ## 4.19.0
 
 ### Patch Changes

diff --git a/packages/adapter-gchat/package.json b/packages/adapter-gchat/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chat-adapter/gchat",
-  "version": "4.19.0",
+  "version": "4.20.0",
   "description": "Google Chat adapter for chat",
   "type": "module",
   "main": "./dist/index.js",

diff --git a/packages/adapter-github/CHANGELOG.md b/packages/adapter-github/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @chat-adapter/github
 
+## 4.20.0
+
+### Patch Changes
+
+- chat@4.20.0
+- @chat-adapter/shared@4.20.0
+
 ## 4.19.0
 
 ### Patch Changes

diff --git a/packages/adapter-github/package.json b/packages/adapter-github/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chat-adapter/github",
-  "version": "4.19.0",
+  "version": "4.20.0",
   "description": "GitHub adapter for chat - PR comment threads",
   "type": "module",
   "main": "./dist/index.js",

diff --git a/packages/adapter-linear/CHANGELOG.md b/packages/adapter-linear/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @chat-adapter/linear
 
+## 4.20.0
+
+### Patch Changes
+
+- chat@4.20.0
+- @chat-adapter/shared@4.20.0
+
 ## 4.19.0
 
 ### Patch Changes

diff --git a/packages/adapter-linear/package.json b/packages/adapter-linear/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chat-adapter/linear",
-  "version": "4.19.0",
+  "version": "4.20.0",
   "description": "Linear adapter for chat - issue comment threads",
   "type": "module",
   "main": "./dist/index.js",

diff --git a/packages/adapter-shared/CHANGELOG.md b/packages/adapter-shared/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @chat-adapter/shared
 
+## 4.20.0
+
+### Patch Changes
+
+- chat@4.20.0
+
 ## 4.19.0
 
 ### Patch Changes

diff --git a/packages/adapter-shared/package.json b/packages/adapter-shared/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chat-adapter/shared",
-  "version": "4.19.0",
+  "version": "4.20.0",
   "description": "Shared utilities for chat SDK adapters",
   "type": "module",
   "exports": {

diff --git a/packages/adapter-slack/CHANGELOG.md b/packages/adapter-slack/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @chat-adapter/slack
 
+## 4.20.0
+
+### Patch Changes
+
+- chat@4.20.0
+- @chat-adapter/shared@4.20.0
+
 ## 4.19.0
 
 ### Minor Changes

diff --git a/packages/adapter-slack/package.json b/packages/adapter-slack/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chat-adapter/slack",
-  "version": "4.19.0",
+  "version": "4.20.0",
   "description": "Slack adapter for chat",
   "type": "module",
   "main": "./dist/index.js",

diff --git a/packages/adapter-teams/CHANGELOG.md b/packages/adapter-teams/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @chat-adapter/teams
 
+## 4.20.0
+
+### Patch Changes
+
+- chat@4.20.0
+- @chat-adapter/shared@4.20.0
+
 ## 4.19.0
 
 ### Patch Changes

diff --git a/packages/adapter-teams/package.json b/packages/adapter-teams/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chat-adapter/teams",
-  "version": "4.19.0",
+  "version": "4.20.0",
   "description": "Microsoft Teams adapter for chat",
   "type": "module",
   "main": "./dist/index.js",

diff --git a/packages/adapter-telegram/CHANGELOG.md b/packages/adapter-telegram/CHANGELOG.md
@@ -1,5 +1,13 @@
 # @chat-adapter/telegram
 
+## 4.20.0
+
+### Patch Changes
+
+- ee1c025: Fix DM replies failing with "chat not found" due to double-prefixed channel ID in postChannelMessage
+  - chat@4.20.0
+  - @chat-adapter/shared@4.20.0
+
 ## 4.19.0
 
 ### Patch Changes

diff --git a/packages/adapter-telegram/package.json b/packages/adapter-telegram/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chat-adapter/telegram",
-  "version": "4.19.0",
+  "version": "4.20.0",
   "description": "Telegram adapter for chat",
   "type": "module",
   "main": "./dist/index.js",

diff --git a/packages/adapter-whatsapp/CHANGELOG.md b/packages/adapter-whatsapp/CHANGELOG.md
@@ -0,0 +1,12 @@
+# @chat-adapter/whatsapp
+
+## 4.20.0
+
+### Minor Changes
+
+- 60f5d8e: Add WhatsApp adapter using Meta's WhatsApp Business Cloud API
+
+### Patch Changes
+
+- chat@4.20.0
+- @chat-adapter/shared@4.20.0
diff --git a/packages/adapter-whatsapp/package.json b/packages/adapter-whatsapp/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chat-adapter/whatsapp",
-  "version": "4.14.0",
+  "version": "4.20.0",
   "description": "WhatsApp adapter for chat - WhatsApp Business Cloud API",
   "type": "module",
   "main": "./dist/index.js",

diff --git a/packages/chat/CHANGELOG.md b/packages/chat/CHANGELOG.md
@@ -1,5 +1,7 @@
 # chat
 
+## 4.20.0
+
 ## 4.19.0
 
 ### Minor Changes

diff --git a/packages/chat/package.json b/packages/chat/package.json
@@ -1,6 +1,6 @@
 {
   "name": "chat",
-  "version": "4.19.0",
+  "version": "4.20.0",
   "description": "Unified chat abstraction for Slack, Teams, Google Chat, and Discord",
   "type": "module",
   "main": "./dist/index.js",

diff --git a/packages/state-ioredis/CHANGELOG.md b/packages/state-ioredis/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @chat-adapter/state-ioredis
 
+## 4.20.0
+
+### Patch Changes
+
+- chat@4.20.0
+
 ## 4.19.0
 
 ### Minor Changes

diff --git a/packages/state-ioredis/package.json b/packages/state-ioredis/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chat-adapter/state-ioredis",
-  "version": "4.19.0",
+  "version": "4.20.0",
   "description": "ioredis state adapter for chat (production)",
   "type": "module",
   "main": "./dist/index.js",

diff --git a/packages/state-memory/CHANGELOG.md b/packages/state-memory/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @chat-adapter/state-memory
 
+## 4.20.0
+
+### Patch Changes
+
+- chat@4.20.0
+
 ## 4.19.0
 
 ### Minor Changes

diff --git a/packages/state-memory/package.json b/packages/state-memory/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chat-adapter/state-memory",
-  "version": "4.19.0",
+  "version": "4.20.0",
   "description": "In-memory state adapter for chat (development/testing)",
   "type": "module",
   "main": "./dist/index.js",

diff --git a/packages/state-pg/CHANGELOG.md b/packages/state-pg/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @chat-adapter/state-pg
 
+## 4.20.0
+
+### Patch Changes
+
+- chat@4.20.0
+
 ## 4.19.0
 
 ### Minor Changes

diff --git a/packages/state-pg/package.json b/packages/state-pg/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chat-adapter/state-pg",
-  "version": "4.19.0",
+  "version": "4.20.0",
   "description": "Postgres state adapter for chat (production)",
   "type": "module",
   "main": "./dist/index.js",

diff --git a/packages/state-redis/CHANGELOG.md b/packages/state-redis/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @chat-adapter/state-redis
 
+## 4.20.0
+
+### Patch Changes
+
+- chat@4.20.0
+
 ## 4.19.0
 
 ### Minor Changes

diff --git a/packages/state-redis/package.json b/packages/state-redis/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chat-adapter/state-redis",
-  "version": "4.19.0",
+  "version": "4.20.0",
   "description": "Redis state adapter for chat (production)",
   "type": "module",
   "main": "./dist/index.js",