diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4020675..af6dbff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,17 +1,37 @@
+# Changelog
 
+All notable changes to this project are documented in this file. Releases use
+[Semantic Versioning](https://semver.org/) and are generated from Conventional
+Commits by release-it.
 
-# [0.2.0](https://github.com/JimmyDaddy/react-native-bs-diff-patch/compare/v0.1.0...v0.2.0) (2026-07-19)
-
+## [0.3.0-beta.1](https://github.com/JimmyDaddy/react-native-bs-diff-patch/compare/v0.2.0...v0.3.0-beta.1) (2026-07-20)
 
 ### Features
 
-* harden cross-platform package and runtime ([#28](https://github.com/JimmyDaddy/react-native-bs-diff-patch/issues/28)) ([23dc872](https://github.com/JimmyDaddy/react-native-bs-diff-patch/commit/23dc872756f9583ada5e915f01c5600fc1f0ffce))
+- add cancellable `startDiff()` and `startPatch()` jobs with progress events,
+  input/output limits, stable error codes, and atomic no-overwrite output;
+- implement the job registry and resource cleanup for Android and iOS while
+  preserving the existing `diff()` and `patch()` APIs;
+- provide the same controllable operation facade on React Native Web through
+  WebAssembly module Workers;
+- expand the bilingual Playground and documentation with progress,
+  cancellation, limits, error handling, and platform differences.
 
-# Changelog
+### Compatibility, testing, and security
 
-All notable changes to this project are documented in this file. Releases use
-[Semantic Versioning](https://semver.org/) and are generated from Conventional
-Commits by release-it.
+- upgrade the example and compatibility toolchain to React Native 0.86,
+  React 19.2, RN CLI 20.2, and current release tooling;
+- add deterministic native-core tests, Android API 24/31 and iOS Simulator
+  runtime assertions, registry consumer canaries, and native benchmarks;
+- update transitive development dependencies to remove all open Dependabot
+  alerts from the default branch.
+
+## [0.2.0](https://github.com/JimmyDaddy/react-native-bs-diff-patch/compare/v0.1.0...v0.2.0) (2026-07-19)
+
+### Features
+
+- harden cross-platform package and runtime
+  ([#28](https://github.com/JimmyDaddy/react-native-bs-diff-patch/issues/28)).
 
 ## [0.1.0](https://github.com/JimmyDaddy/react-native-bs-diff-patch/releases/tag/v0.1.0) (2026-07-18)
 
@@ -21,4 +41,4 @@ Commits by release-it.
 - support both the React Native legacy and New Architecture runtimes;
 - add Android and iOS device-level runtime assertions;
 - publish through npm Trusted Publishing with provenance;
-- add bilingual documentation, an interactive Playground, and GitHub Pages.
\ No newline at end of file
+- add bilingual documentation, an interactive Playground, and GitHub Pages.
diff --git a/package.json b/package.json
index 6d71ae5..ebad709 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-native-bs-diff-patch",
-  "version": "0.2.0",
+  "version": "0.3.0-beta.1",
   "description": "Binary diff and patch support for React Native and React Native Web",
   "main": "lib/commonjs/index",
   "module": "lib/module/index",