# Deno v1.35.1 — Release & Upgrade Intelligence
- **Product:** Deno (https://deno.com)
- **Version:** v1.35.1
- **Released:** Jul 13, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/deno/updates/v1.35.1/

## Executive Summary (TL;DR)
Deno v1.35.1. Source highlight: fix(ext/http): Use brotli compression params (#19758)

## New Features
- perf: add setup cache for node_modules folder (#19787)

## Improvements
- perf(ext/node): native vectored write for server streams (#19752)
- perf(ext/node): optimize net streams (#19678)
- perf(ext/websocket): optimize server websocket js (#19719)
- perf(node/async_hooks): optimize AsyncLocalStorage (#19729)

## Bug Fixes
- fix(ext/http): Use brotli compression params (#19758)
- fix(lsp): exclude files in deno.json "exclude" (#19791)
- fix(lsp): remove quotes and period surrounding specifier in uncached messages
- fix(lsp): stop diagnostics flickering (#19803)
- fix(node/http): add destroy to FakeSocket (#19796)
- fix(node/http): allow callback in first argument of end call (#19778)