Impact Score: 5/10
Deno v1.38.1 — 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 v1.38.1. Source highlight: feat(ext/kv): increase checks limit (#21055)
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)
- feat(ext/kv): increase checks limit (#21055)
⚡ Performance & Enhancements (2)
- perf: lazy `atexit` setup (#21053)
- perf: remove knowledge of promise IDs from deno (#21132)
🔧 Bug Fixes & Patches (6)
- fix small Deno.createHttpClient typo in lib.deno.unstable.d.ts (#21115)
- fix(byonm): correct resolution for scoped packages (#21083)
- fix(core/types): `Promise.withResolvers`: Unmark callback param as optional
- fix(cron): update Deno.cron doc example (#21078)
- fix(doc): `deno doc --lint mod.ts` should output how many files checked
- fix(doc): require source files if --html or --lint used (#21072)
📄 View Raw Release Notes (Original Developer Log)
### 1.38.1 / 2023.11.10
- feat(ext/kv): increase checks limit (#21055)
- fix small Deno.createHttpClient typo in lib.deno.unstable.d.ts (#21115)
- fix(byonm): correct resolution for scoped packages (#21083)
- fix(core/types): `Promise.withResolvers`: Unmark callback param as optional
(#21085)
- fix(cron): update Deno.cron doc example (#21078)
- fix(doc): `deno doc --lint mod.ts` should output how many files checked
(#21084)
- fix(doc): require source files if --html or --lint used (#21072)
- fix(ext): use `String#toWellFormed` in ext/webidl and ext/node (#21054)
- fix(ext/fetch): re-align return type in op_fetch docstring (#21098)
- fix(ext/http): Throwing Error if the return value of Deno.serve handler is not
a Response class (#21099)
- fix(node): cjs export analysis should probe for json files (#21113)
- fix(node): implement createPrivateKey (#20981)
- fix(node): inspect ancestor directories when resolving cjs re-exports during
analysis (#21104)
- fix(node): use closest package.json to resolve package.json imports (#21075)
- fix(node/child_process): properly normalize stdio for 'spawnSync' (#21103)
- fix(node/http): socket.setTimeout (#20930)
- fix(test) reduce queue persistence test time from 60 secs to 6 secs (#21142)
- perf: lazy `atexit` setup (#21053)
- perf: remove knowledge of promise IDs from deno (#21132)