Stabilization and API promotions
Streams and collections shed unstable wrappers
BatchStream was stabilized and re-exported from @std/streams, while zip() in collections was promoted to a stable entrypoint for iterable inputs. These changes make both utilities part of the supported public API.
Async utilities gained a new pooled mapping helper
@std/async/unstable-pool added pooledMap, an abort-aware concurrent mapper that lets queued work be canceled while in-flight tasks settle. A companion pooledMapSettled() fix also ensures late aborts are honored after input is drained.
Correctness and cancellation fixes
Abort handling was tightened across async iterators
abortable() now closes source async iterators correctly when consumers exit early or when cancellation fires, preventing leaks and making cleanup behavior more predictable. The unstable variant was also fixed to return the proper async generator when no signal is passed.
CBOR encoding now ignores inherited enumerable keys Object serialization was corrected to use own enumerable keys consistently, preventing inherited properties from leaking into encoded output and changing emitted bytes for affected objects.
Release and CI hardening
Publish workflow no longer follows canary Deno
The JSR publish workflow was pinned to stable v2.x instead of canary builds, avoiding release failures from unreleased Deno regressions.
Other misc changes
- CI stopped uploading coverage to Deno Deploy.
- Contributor docs and AGENTS guidance were clarified around error classes, PR titles, and unstable semantics.
- Several skipped doc examples were enabled, and a stale lint task/config typo was removed.