Deno v1.35.1 — Release Notes & Engineering Impact

Source available — automated, not human-reviewed

Component: deno · Channel: stable. Automated analysis, not a compatibility certification. How this works.

Analysis updated: 2026-11-01.

Compatibility not verified — check source notes

📄 .MD

✨ Features 1 ⚡ Improvements 4 🔧 Bug Fixes 6

⚡ Executive Summary (TL;DR)

Deno v1.35.1. Source highlight: fix(ext/http): Use brotli compression params (#19758)

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Who Does This Impact? (Role-Based Analysis)

💻 Software Engineers & Devs

Check the source notes against the package and APIs you use before upgrading.

📊 Product & Engineering Leads

Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.

⚙️ DevOps & Security

Verify the target version, runtime requirements and rollback procedure in the official documentation.

✨ New Features & Capabilities (1)

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

⚡ Performance & Enhancements (4)

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 & Patches (6)

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)

📄 View Raw Release Notes (Original Developer Log)

### 1.35.1 / 2023.07.12 - 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 (#19794) - 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) - fix(node/http): server use FakeSocket and add end method (#19660) - fix(vendor): support import mapped jsxImportSource (#19724) - fix: remove unstable check for Deno.listenTls#alpnProtocols (#19732) - 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) - perf: add setup cache for node_modules folder (#19787)

← Older Version Deno v1.35.0 Newer Version → Deno v1.35.2