- Added numerous new stable APIs (Deno.consoleSize, Deno.osRelease, Deno.stdin.setRaw, Deno.futime/utime, Deno.loadavg, navigator.language) and introduced a new lockfile format.
- Enhanced CLI and task system with background update checks, detailed error recursion info, sleep suffix support, improved task failure handling, and added inlay hints support.
- Implemented performance optimizations across core and extensions (V8 harmony array copy flag, faster FFI reads, optimized web and websocket ops) and fixed a wide range of bugs.
v1.27.0
Official Deno changelog summary with source attribution, release tags, and community reactions.
Track this Deno release note alongside related changelog updates, risky changes, and weekly digest signals from the developer community.
Verify the original release note
Every summary should remain traceable to the original changelog or release source.
Follow this in context
Turn this Deno release note into a weekly digest for the tools you actually use.
Create digestMore Deno changelog updates
Added an unscoped flag for package aliasing, a members‑only flag for workspace tasks, Blob/Body.textStream() API, and an experimental QuickJS backend.
Added HMR support for React Router on desktop, new length/byteLength parameters for Buffer searches, raw ChaCha20 cipher support, and upgraded V8 to 150.2.0.