- Added ability to save Replay filters (events, tags, URLs, CSS selectors) for later reuse
- Facilitates quick access to frequently used queries in Session Replay
ReactJS changelog digest
Jan 26 - Feb 1, 2026. Useful releases, risky migrations, and noisy updates from the ReactJS channel.
No matching updates in this bucket.
ReactJS updates in 2026-w05
- Added new features including mock API for node:test, FileHandle.readv, JSR support for @jsr scope, external socket‑based cron, V8 14.5 upgrade, and inspect publish UID flag for VSCode debugging.
- Implemented numerous bug fixes across ext/* modules such as HTTP serve address handling, Unix listener cleanup, SQLite compatibility, V8 string API usage, NODE_OPTIONS processing, keep‑alive retry, setImmediate promisify, primordials usa...
- Improved tooling and compatibility: local npm package handling with unstable flags, AST comment linting, and allowing /dev/tty reads without extra permissions.
- Release Bun v1.3.8 for Windows with upgrade instructions.
- Release notes published on Bun’s blog.
- Acknowledges contributions from four community members.
- Fixed memory leak in span map and ensured LRU cache items have a minimum size to prevent unbounded growth.
- Added an LRU cache scoped by invocation ID for minimal‑mode response caching (new feature).
- Implemented multiple Turbopack improvements: NFT tracing fixes, pattern support in exports, and CSS validation without computing all paths.
- Introduces an open beta for building dashboard widgets directly from Metrics queries.
- Enables users to create custom visualizations without leaving the Metrics interface.
- Backported bug fixes from the canary release.
- Upgraded the SWC compiler to version 54.
- Implemented an LRU cache with invocation‑ID scoped minimal‑mode response caching and refined the sentinel key.
- Fix numerous bugs across the runtime, including Intel‑Mac cross‑compilation for Deno, a fetch file‑descriptor leak, bundle name clashes and esbuild cleanup issues, and several Node compatibility fixes (process.argv, stdin TTY, crypto cip...
- Address platform‑specific compilation problems (Intel‑Mac temps, sentinel conflicts) and improve stability of extensions and checks (nil deref, authTagLength handling).
- Seer AI debugger now detects issues during pull request reviews
- Provides explanations for production failures
- Automatically fixes missed bugs
- Adds Windows installation instructions for Bun v1.3.7
- Provides upgrade guidance via release notes
- Acknowledges contributors to the release
- Security update addressing CVE-2025-59471, CVE-2025-59472, and CVE-2026-23864.
- Includes patches to mitigate the identified vulnerabilities.
- Addresses a critical security vulnerability.
- Improves overall system hardening.
- Fix security vulnerabilities identified in CVE-2025-59471 and CVE-2025-59472
- Patch CVE-2026-23864 to address a critical security issue
- Applied security patch addressing identified vulnerabilities.
- No functional changes or new features were introduced.
- Security patch released to address a vulnerability.
- No functional changes for end users.
- Addresses security vulnerabilities in the application.
- Improves overall system security with a new patch.
- Added DoS mitigation layers to Server Actions
- Hardened Server Components to improve resilience against attacks
- Add DoS mitigations to Server Actions to reduce attack surface.
- Harden Server Components implementation against potential abuses.
- Add additional DoS mitigations to Server Actions
- Hardening of Server Components for improved security