Impact Score: 5/10
Deno v1.37.1 — 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.
⚡ Executive Summary (TL;DR)
Deno v1.37.1. Source highlight: feat(ext/web): use readableStreamDefaultReaderRead in
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 (4)
- feat(ext/web): use readableStreamDefaultReaderRead in
- feat(kv_queues): increase max queue delay to 30 days (#20626)
- feat(lsp): support more vscode built-in settings (#20679)
- feat(unstable): add `Deno.jupyter.broadcast` API (#20656)
⚡ Performance & Enhancements (3)
- perf(ext/fetch): use new instead of createBranded (#20624)
- perf(test): use core.currentUserCallSite (#20669)
- perf(test): use fast ops for deno test register (#20670)
🔧 Bug Fixes & Patches (6)
- feat(lsp): cache all dependencies quick fix (#20665)
- fix(cli/test): clear connection pool after tests (#20680)
- fix(ext/http): ensure that resources are closed when request is cancelled
- fix(ext/node): Fix invalid length variable reference in blitBuffer (#20648)
- fix(ext/node): simplified array.from + map (#20653)
- fix(ext/web): Aggregate small packets for Resource implementation of
📄 View Raw Release Notes (Original Developer Log)
### 1.37.1 / 2023.09.27
- feat(ext/web): use readableStreamDefaultReaderRead in
resourceForReadableStream (#20622)
- feat(kv_queues): increase max queue delay to 30 days (#20626)
- feat(lsp): cache all dependencies quick fix (#20665)
- feat(lsp): support more vscode built-in settings (#20679)
- feat(unstable): add `Deno.jupyter.broadcast` API (#20656)
- fix(cli/test): clear connection pool after tests (#20680)
- fix(ext/http): ensure that resources are closed when request is cancelled
(#20641)
- fix(ext/node): Fix invalid length variable reference in blitBuffer (#20648)
- fix(ext/node): simplified array.from + map (#20653)
- fix(ext/web): Aggregate small packets for Resource implementation of
ReadableStream (#20570)
- fix(jupyter): await Jupyter.display evaluation (#20646)
- fix(kv): unflake kv unit tests (#20640)
- fix(kv_queues): graceful shutdown (#20627)
- fix(lsp): allow query strings for "deno:/status.md" (#20697)
- fix(lsp): resolve remote import maps (#20651)
- fix(lsp): show related information for tsc diagnostics (#20654)
- fix(node): point process.version to Node 18.18.0 LTS (#20597)
- fix(node): supported arguments to `randomFillSync` (#20637)
- fix(node/package_json): Avoid panic when "exports" field is null (#20588)
- fix(upgrade): error instead of panic on unzip failure (#20691)
- perf(ext/fetch): use new instead of createBranded (#20624)
- perf(test): use core.currentUserCallSite (#20669)
- perf(test): use fast ops for deno test register (#20670)