# Deno v2.7.14 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v2.7.14
- **Released:** Apr 28, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v2.7.14/

## Executive Summary (TL;DR)
Deno v2.7.14. Source highlight: feat(ext/node): add fs.Utf8Stream

## New Features
- feat(ext/node): add fs.Utf8Stream

## Improvements
- perf(ext/node): pool 64KB read buffers to reduce allocation pressure (#33395)
- perf: optimize worker and MessagePort message passing (#32657)
- perf: upgrade rusty_v8 to 147.4.0 (#33422)

## Bug Fixes
- feat(upgrade): delta updates via bsdiff patches (#33274)
- fix(bundle): treat CSS same-document fragment URLs as external (#33492)
- fix(cache): add missing CacheStorage.keys() and Cache.keys() methods (#33275)
- fix(config): don't exclude workspace members from deploy file patterns
- fix(coverage): exclude transformer-injected helpers from coverage (#33481)
- fix(doc): remove background from operators in dark mode code blocks (#33267)