chore(release): v4.2.0 (#79)

Co-authored-by: Claude <claude@anthropic.com>

Author: ZhiXiao-Lin

CHANGELOG.md

@@ -5,6 +5,27 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [4.2.0] - 2026-06-23
+
+### Added
+
+- Native structured-output enforcement. `LlmClient` gains
+  `native_structured_support()`, `complete_structured()`, and
+  `complete_streaming_structured()` (all with non-breaking default impls). The
+  structured engine now forces the provider `tool_choice` for tool mode and
+  requests native `response_format` (`json_schema` / `json_object`) where the
+  provider supports it, instead of merely offering a tool the model could ignore.
+
+### Fixed
+
+- Stabilized JSON-object generation. Forced `tool_choice` on both the blocking
+  and streaming paths guarantees the model emits the structured object rather
+  than prose or malformed tool arguments.
+- Hardened the planner / pre-analysis JSON parsing: it now reuses the robust
+  shared extractor (markdown fences, surrounding prose, braces inside strings)
+  and adds one repair retry, replacing the previous naive first-`{`/last-`}`
+  slice that hard-errored on fenced or prose-wrapped output.
+
 ## [4.1.0] - 2026-06-23
 
 ### Changed

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "a3s-code-core"
-version = "4.1.0"
+version = "4.2.0"
 edition = "2021"
 authors = ["A3S Lab Team"]
 license = "MIT"

core/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "a3s-code-node"
-version = "4.1.0"
+version = "4.2.0"
 edition = "2021"
 authors = ["A3S Lab Team"]
 license = "MIT"
@@ -11,7 +11,7 @@ description = "A3S Code Node.js bindings - Native addon via napi-rs"
 crate-type = ["cdylib"]
 
 [dependencies]
-a3s-code-core = { version = "4.1.0", path = "../../core", features = ["ahp", "s3", "serve"] }
+a3s-code-core = { version = "4.2.0", path = "../../core", features = ["ahp", "s3", "serve"] }
 napi = { version = "2", features = ["async", "napi6", "serde-json"] }
 napi-derive = "2"
 tokio = { version = "1.35", features = ["full"] }

sdk/node/Cargo.toml

@@ -1,6 +1,6 @@
 {
   "name": "@a3s-lab/code",
-  "version": "4.1.0",
+  "version": "4.2.0",
   "description": "A3S Code - Native Node.js bindings for the coding-agent runtime",
   "main": "index.js",
   "types": "index.d.ts",
@@ -43,11 +43,11 @@
     "test:helpers": "node test-helpers.mjs"
   },
   "optionalDependencies": {
-    "@a3s-lab/code-darwin-arm64": "4.1.0",
-    "@a3s-lab/code-linux-x64-gnu": "4.1.0",
-    "@a3s-lab/code-linux-x64-musl": "4.1.0",
-    "@a3s-lab/code-linux-arm64-gnu": "4.1.0",
-    "@a3s-lab/code-linux-arm64-musl": "4.1.0",
-    "@a3s-lab/code-win32-x64-msvc": "4.1.0"
+    "@a3s-lab/code-darwin-arm64": "4.2.0",
+    "@a3s-lab/code-linux-x64-gnu": "4.2.0",
+    "@a3s-lab/code-linux-x64-musl": "4.2.0",
+    "@a3s-lab/code-linux-arm64-gnu": "4.2.0",
+    "@a3s-lab/code-linux-arm64-musl": "4.2.0",
+    "@a3s-lab/code-win32-x64-msvc": "4.2.0"
   }
 }

sdk/node/examples/package-lock.json

@@ -7,7 +7,7 @@ name = "a3s-code"
 # Keep in sync with crates/code core release. The bootstrap loader fetches
 # the matching native wheel from `https://github.com/AI45Lab/Code/releases/tag/v<version>`
 # at import time.
-version = "4.1.0"
+version = "4.2.0"
 description = "A3S Code Python SDK — pure-Python bootstrap that fetches the native wheel from GitHub Releases"
 readme = "README.md"
 license = {text = "MIT"}

sdk/node/package-lock.json

@@ -31,7 +31,7 @@
 
 # Version is the bootstrap's own version, which equals the matching native
 # wheel version on GH Releases. Bumped by the release workflow.
-__version__ = "4.1.0"
+__version__ = "4.2.0"
 
 _DEFAULT_BASE_URL = "https://github.com/AI45Lab/Code/releases/download"
 _REQUEST_TIMEOUT_S = 120

sdk/node/package.json

@@ -1,6 +1,6 @@
 [package]
 name = "a3s-code-py"
-version = "4.1.0"
+version = "4.2.0"
 edition = "2021"
 authors = ["A3S Lab Team"]
 license = "MIT"
@@ -12,7 +12,7 @@ name = "a3s_code"
 crate-type = ["cdylib"]
 
 [dependencies]
-a3s-code-core = { version = "4.1.0", path = "../../core", features = ["ahp", "s3", "serve"] }
+a3s-code-core = { version = "4.2.0", path = "../../core", features = ["ahp", "s3", "serve"] }
 pyo3 = "0.23"
 tokio = { version = "1.35", features = ["full"] }
 serde_json = "1.0"