# Deno v2.5.2 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v2.5.2
- **Released:** Sep 24, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v2.5.2/

## Executive Summary (TL;DR)
Deno v2.5.2. Source highlight: feat(lsp): describe/it test editor support (#30802)

## New Features
- feat(lsp): describe/it test editor support (#30802)

## Improvements
- perf(lsp): don't watch node_modules files (#30768)
- perf: stack allocated v8 scopes (#30827)
- perf: support negative caching of package.json (#30792)

## Bug Fixes
- fix(bundle): reload html entrypoints with --watch (#30790)
- fix(check): support "compilerOptions.paths" (#30766)
- fix(cli/bundle): respect --frozen flag deno bundle command (#30825)
- fix(coverage): collect coverage data for workers (#30807)
- fix(dts): add `Uint8Array` base64/hex methods (#30686)
- fix(dts): update stream type declarations to use `Promise<void>` (#30820)