release 0.14.0 (delta-io#1138)

release 0.14.0! [link to rendered
changelog](https://github.com/delta-io/delta-kernel-rs/blob/5678e3ecb5baf2c044a572ee9cc38d1ae8ee97bd/CHANGELOG.md)

Author: zachschuermann

CHANGELOG.md

@@ -1,5 +1,92 @@
 # Changelog
 
+## [v0.14.0](https://github.com/delta-io/delta-kernel-rs/tree/v0.14.0/) (2025-08-01)
+
+[Full Changelog](https://github.com/delta-io/delta-kernel-rs/compare/v0.13.0...v0.14.0)
+
+### 🏗️ Breaking changes
+1. Removed Table APIs: instead use `Snapshot` and `Transaction` directly. ([#976])
+2. Add support for Variant type and the variantType table feature (new `DataType::Variant` enum
+   variant and new `variantType-preview` and `variantShredding` Reader/Writer features) ([#1015])
+3. Expose post commit stats. Now, in `Transaction::commit` the `Committed` variant of the enum
+   includes a `post_commit_stats` field with info about the commits since checkpoint and log
+   compaction. ([#1079])
+4. Replace `Transaction::with_commit_info()` API with `with_engine_info()` API ([#997])
+5. Removed `DataType::decimal_unchecked` API ([#1087])
+6. `make_physical` takes column mapping and sets parquet field ids. breaking: (1)
+    `StructField::make_physical` is now an internal_api instead of a public function. Its signature
+    has also changed. And (2) If `ColumnMappingMode` is `None`, then the physical schema's name is
+    the logical name. Previously, kernel would unconditionally use the column mapping physical name,
+    even if column mapping mode is none. ([#1082])
+
+### 🚀 Features / new APIs
+
+1. *(ffi)* Added default-engine-rustls feature and extern "C" for .h file ([#1023])
+2. Add log segment constructor for timestamp to version conversion ([#895])
+3. Expose unshredded variant type as `DataType::unshredded_variant()` ([#1086])
+4. New ffi API for `get_domain_metadata()` ([#1041])
+5. Add append functions to ffi ([#962])
+6. Add try_new and `IntoEngineData` for Metadata action ([#1122])
+
+### 🐛 Bug Fixes
+
+1. Rename object_store PutMultipartOpts ([#1071], [#1090])
+2. Use object_store >= 0.12.3 for arrow 55 feature ([#1117])
+3. VARIANT follow-ups for SchemaTransform etc ([#1106])
+
+### 🚜 Refactor
+
+1. Downgrade stale `_last_checkpoint` log from `warn!` to `info!` ([#777])
+2. Exclude `tests/data` from release ([#1092])
+3. Deny panics in prod code ([#1113])
+
+### 🧪 Testing
+
+1. Add derive macro tests ([#514])
+2. Add unshredded variant read test ([#1088])
+3. *(ffi)* `AllocateErrorFn` should be able to allocate a nullptr ([#1105])
+4. Assert tests on error message instead of `is_err()` ([#1110])
+
+### ⚙️ Chores/CI
+
+1. Expose Snapshot and ListedLogFiles constructors behind internal api flag ([#1076])
+2. Only semver check released crates ([#1101])
+
+### Other
+
+1. Fix typos in README ([#1093])
+2. Fix typos in docstrings ([#1118])
+
+
+[#1023]: https://github.com/delta-io/delta-kernel-rs/pull/1023
+[#976]: https://github.com/delta-io/delta-kernel-rs/pull/976
+[#1071]: https://github.com/delta-io/delta-kernel-rs/pull/1071
+[#1076]: https://github.com/delta-io/delta-kernel-rs/pull/1076
+[#1015]: https://github.com/delta-io/delta-kernel-rs/pull/1015
+[#1079]: https://github.com/delta-io/delta-kernel-rs/pull/1079
+[#514]: https://github.com/delta-io/delta-kernel-rs/pull/514
+[#777]: https://github.com/delta-io/delta-kernel-rs/pull/777
+[#895]: https://github.com/delta-io/delta-kernel-rs/pull/895
+[#997]: https://github.com/delta-io/delta-kernel-rs/pull/997
+[#1086]: https://github.com/delta-io/delta-kernel-rs/pull/1086
+[#1090]: https://github.com/delta-io/delta-kernel-rs/pull/1090
+[#1088]: https://github.com/delta-io/delta-kernel-rs/pull/1088
+[#1093]: https://github.com/delta-io/delta-kernel-rs/pull/1093
+[#1092]: https://github.com/delta-io/delta-kernel-rs/pull/1092
+[#1087]: https://github.com/delta-io/delta-kernel-rs/pull/1087
+[#1041]: https://github.com/delta-io/delta-kernel-rs/pull/1041
+[#1101]: https://github.com/delta-io/delta-kernel-rs/pull/1101
+[#1113]: https://github.com/delta-io/delta-kernel-rs/pull/1113
+[#1105]: https://github.com/delta-io/delta-kernel-rs/pull/1105
+[#1117]: https://github.com/delta-io/delta-kernel-rs/pull/1117
+[#1118]: https://github.com/delta-io/delta-kernel-rs/pull/1118
+[#1106]: https://github.com/delta-io/delta-kernel-rs/pull/1106
+[#962]: https://github.com/delta-io/delta-kernel-rs/pull/962
+[#1122]: https://github.com/delta-io/delta-kernel-rs/pull/1122
+[#1110]: https://github.com/delta-io/delta-kernel-rs/pull/1110
+[#1082]: https://github.com/delta-io/delta-kernel-rs/pull/1082
+
+
 ## [v0.13.0](https://github.com/delta-io/delta-kernel-rs/tree/v0.13.0/) (2025-07-11)
 
 [Full Changelog](https://github.com/delta-io/delta-kernel-rs/compare/v0.12.1...v0.13.0)

Cargo.toml

@@ -23,4 +23,4 @@ license = "Apache-2.0"
 repository = "https://github.com/delta-io/delta-kernel-rs"
 readme = "README.md"
 rust-version = "1.82"
-version = "0.13.0"
+version = "0.14.0"

README.md

@@ -52,10 +52,10 @@ consumer's own `Engine` trait, the kernel has a feature flag to enable a default
 ```toml
 # fewer dependencies, requires consumer to implement Engine trait.
 # allows consumers to implement their own in-memory format
-delta_kernel = "0.13.0"
+delta_kernel = "0.14.0"
 
 # or turn on the default engine, based on arrow
-delta_kernel = { version = "0.13.0", features = ["default-engine", "arrow-55"] }
+delta_kernel = { version = "0.14.0", features = ["default-engine", "arrow-55"] }
 ```
 
 ### Feature flags

ffi/Cargo.toml

@@ -25,7 +25,7 @@ url = "2"
 delta_kernel = { path = "../kernel", default-features = false, features = [
   "internal-api",
 ] }
-delta_kernel_ffi_macros = { path = "../ffi-proc-macros", version = "0.13.0" }
+delta_kernel_ffi_macros = { path = "../ffi-proc-macros", version = "0.14.0" }
 
 [build-dependencies]
 cbindgen = "0.28"

kernel/Cargo.toml

@@ -39,7 +39,7 @@ pre-release-hook = [
 ]
 
 [dependencies]
-delta_kernel_derive = { path = "../derive-macros", version = "0.13.0" }
+delta_kernel_derive = { path = "../derive-macros", version = "0.14.0" }
 bytes = "1.10"
 chrono = "0.4.40"
 indexmap = "2.9.0"