# Deno v2.1.2 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v2.1.2
- **Released:** Nov 28, 2024
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v2.1.2/

## Executive Summary (TL;DR)
Deno v2.1.2. Source highlight: feat(unstable): Instrument Deno.serve (#26964)

## New Features
- feat(unstable): Instrument Deno.serve (#26964)
- feat(unstable): Instrument fetch (#27057)
- feat(unstable): repurpose `--unstable-detect-cjs` to attempt loading more

## Improvements
- perf(compile): read embedded files as static references when UTF-8 and reading
- perf(ext/webstorage): use object wrap for `Storage` (#26931)

## Bug Fixes
- fix(check): support jsdoc `@import` tag (#26991)
- fix(compile): correct buffered reading of assets and files (#27008)
- fix(compile): do not error embedding same symlink via multiple methods
- fix(compile): handle TypeScript file included as asset (#27032)
- fix(ext/fetch): don't throw when `bodyUsed` inspect after upgrade (#27088)
- fix(ext/node): `tls.connect` socket upgrades (#27125)