Changelog

denoland/std · · 13 commits

Std ships new APIs and major stability updates

New XML/collections/async/http APIs landed, plus IndexedHeap was reworked and path compatibility improved for Node.js/Bun.

tomas-zijdemans bartlomieju denobot kt3k LeSingh1

Collections gain new stable and unstable APIs

distinctBy now passes the element index to its discriminator, and a new stable zip helper was added that accepts any iterables, not just arrays. The collections package also stabilized index arguments across several iterable helpers and removed their unstable export aliases in deno.json.

XML gets record streaming support

parseXmlRecords was added as a new streaming API for assembling records from XML callbacks, alongside internal pipeline/decode helpers and updated package exports. This expands the XML package beyond raw tree parsing and callback streaming into a higher-level async generator workflow.

Async Channel is now stable

Channel moved from async/unstable_channel.ts to async/channel.ts, dropping the unstable branding and updating docs/import examples accordingly. This makes the channel API officially stable and easier to adopt in downstream code.

IndexedHeap was reworked for richer priorities

IndexedHeap now supports generic priority types with a comparator, and its API gained set() upsert behavior. That’s a significant expansion of the data structure: it can now act as a max-heap or stable tuple-ordered heap, not just a numeric min-heap. (tomas-zijdemanscc47b5c)

Problem Details parsing was split and hardened

The HTTP problem-details API now separates parseProblemDetails for plain objects from parseProblemDetailsResponse for Response bodies, and createProblemDetailsResponse gained statusText support plus stricter status validation. This is a notable public API change that makes the module more explicit and safer to use. (tomas-zijdemanse085217)

Path compatibility improved for Node.js and Bun

path tests were expanded to run under Node and Bun, and the implementation/docs picked up compatibility fixes like using process.cwd() in tests and better toFileUrl handling for UNC-style paths. This should reduce cross-runtime surprises for consumers using std/path outside Deno. (kt3k4af4c9a)

Other misc changes

  • Expect matcher headline polish for toMatchObject failures.
  • Version bump workflow switched to deno bump-version and release metadata was refreshed.
  • Codecov action bumped and PR title/labeler scope rate-limits added.