What's Changed

• Transform a parked TransformStream write after one backpressure wait by @jasnell in #7412
• Python: Hot fix for stack switching gc crash (upstream pyodide#6466) by @hoodmane in #7422
• Add Analytics SQL binding types by @Ankcorn in #7396
• Split actor retry exhaustion outcomes and increase backoff by @apeacock1991 in #7414
• Document coroutine cleanup patterns by @jtolio in #7403
• [nfc] Fix compiler warnings based on KJ_HEADER_WARNINGS by @fhanau in #7419

Full Changelog: v1.20260918.1...v1.20260919.1

What's Changed

• Keep native pipes from consuming a destination with pending writes by @jasnell in #7395
• Stop identity stream aborts from waiting for a read by @jasnell in #7399
• Wire the Rust I/O backend into workerd: --//:io_backend, on by default by @danlapid in #7328
• Fix container startup flags after cancellation by @jtolio in #7402
• Add a ring buffer for the streams' internal queues by @jasnell in #7405
• Clean up containers on graceful shutdown by @ghostwriternr in #7244
• Move retry claim before actor construction by @apeacock1991 in #7230
• Add just format <files>, just format-head by @sohpeach in #7407
• Abstract CrossThreadWaitList into SyncWaitList and introduce XThreadWaitList by @ObsidianMinor in #7397
• update capnproto by @mikea in #7400
• Improve TS stream primordial safety by @jasnell in #7409
• fix compile_flags.txt by @mikea in #7415
• Updates v8 to 15.4 by @dom96 in #7386
• update capnproto by @mikea in #7420
• Implement inbound UDP handler by @ThomasRubini in #7130
• Add coroutine-hostile-raii lint for UnwindDetector, and add fixes by @jtolio in #7153

Full Changelog: v1.20260917.1...v1.20260918.1

What's Changed

• kj-rs-tokio: timer test allows for the loop's cached time by @danlapid in #7380
• Update WPT to wpt-b875b21fd by @guybedford in #7381
• Expose hibernatable WebSocket count by @jqmmes in #7371
• .bazelrc: add native_arm64 no-op by @git-bruh in #7384
• Restrict GCs at inopportune moments. by @erikcorry in #7387
• container client: Add support for cloudflare/debian-trixie by @gabivlj in #7374
• feat(types): add Browser Run binding methods by @niklhut in #7273
• node:fs: open without O_CREAT is ENOENT for a missing path by @guybedford in #7393
• node:fs: rename and copyFile replace an existing destination by @guybedford in #7394
• Handful of TS streams byob and tee fixes by @jasnell in #7389
• make actor maps own their keys by @mikea in #7398
• Fix handling of pipe draining backpressure by @jasnell in #7391

Full Changelog: v1.20260916.1...v1.20260917.1

What's Changed

• Add node:stream web-interop suite by @jasnell in #7336
• Update dependencies by @workers-devprod in #7363
• fix(server): facet channel UaF after alarm timeout by @git-bruh in #7370
• Disable retries for ineligible actor namespaces by @apeacock1991 in #7353
• Report whether an actor fetch target supports retries by @apeacock1991 in #7345
• Bump next from 16.2.12 to 16.3.3 by @dependabot[bot] in #7292
• Support web streams in stream.pipeline() by @jasnell in #7338
• CC-8364 Allow containers without imageName by @ghostwriternr in #7307
• Expand js-rpc streams test coverage by @jasnell in #7295
• [STOR-5621] Prepare JS RPC call plans for retries by @apeacock1991 in #7323
• node:fs: fix offset/length bounds validation for buffer read/write by @guybedford in #7368
• Add node:net suite by @jasnell in #7339
• Add scheduling time to alarm storage spans by @Ankcorn in #7359
• node:http server test suite by @jasnell in #7340
• node:fs: honour O_TRUNC in open by @guybedford in #7369
• Fix kj-rs waker result race during joined readiness by @harrishancock in #7372
• Python: More minor improvements to patch_pyodide_asm by @hoodmane in #7376
• Add clang-tidy check for stream creation by @jasnell in #7308
• Add node:http client suite by @jasnell in #7341
• thread-safe LOG_PERIODICALLY by @mikea in #7327
• kj-rs: arm the poll event directly on a same-thread stored-waker wake by @danlapid in #7349
• Fix ScriptCompiler usage by @csjh in #7364
• build: finish narrowing kj-async deps to the layer each target uses by @danlapid in #7379
• kj-rs-io: KJ async I/O interfaces backed by tokio by @danlapid in #7013
• [JSG] replace some recursive templates with auto deduce this by @fhanau in #7365
• More node:streams tests and fixes by @jasnell in #7342
• update capnp by @mikea in #7377
• Support web streams in stream.compose() by @jasnell in #7343
• Destroy Readable.fromWeb on a chunk it cannot push by @jasnell in #7344

New Contributors

• @ghostwriternr made their first contribution in #7307
• @csjh made their first contribution in #7364

Full Changelog: v1.20260915.1...v1.20260916.1

What's Changed

• build: depend on the kj-async layer each target actually uses by @danlapid in #7350
• Python workers: Replace string Pyodide patches with ast patches by @hoodmane in #7325
• disable profiler tests under tsan by @mikea in #7355
• feat: expose client IP and port as remoteAddress in TCP connect() handler by @ThomasRubini in #7304
• Update Cargo.toml dependencies and export Cargo.toml in BUILD.bazel by @danlapid in #7356
• node: make the isolate the port namespace for http and net servers by @guybedford in #7357
• Pin error() during a pending close in the readable stream suites by @jasnell in #7335
• [build] JSG: move TypeWrapper members that ignore the type list to a base by @fhanau in #7269
• Fix memory snapshots with Python 3.14 by @hoodmane in #7311
• chore: Tidy up Pyodide patches by @hoodmane in #7367

New Contributors

• @ThomasRubini made their first contribution in #7304

Full Changelog: v1.20260914.1...v1.20260915.1

Full Changelog: v1.20260913.1...v1.20260914.1

What's Changed

• kj-rs-tokio: a kj::EventPort driven by a per-thread tokio runtime by @danlapid in #7011
• node:net: add net.Server and cloudflare:node connectHandler by @guybedford in #7306

Full Changelog: v1.20260912.1...v1.20260913.1

What's Changed

• Add public workflows event subscription type definitions by @mkuritsu in #7261
• CI: minimal bridge prerequisites for Tokio I/O by @harrishancock in #7317
• Add jsg::Lenient based on Rust jsg::Nullable by @LordGoatius in #7037
• sockets: close() with a pipe close in flight logged an uncaught exception by @guybedford in #7313
• Python: Add numpy vendor snapshot stability test by @hoodmane in #7326

Full Changelog: v1.20260911.1...v1.20260912.1

What's Changed

• Build cleanups by @danlapid in #7300
• Improve error message when top-level randomness is used in Python workers by @ryanking13 in #7283
• Refactor Durable Object Retries to be fetch-agnostic by @apeacock1991 in #7266
• fix identity transform stream resolve/state change order by @mikea in #7297
• node:net: add net.BoundSocket by @guybedford in #7299
• Python: Patch workers.wait_until as well as ctx.waitUntil by @hoodmane in #7293

Full Changelog: v1.20260910.1...v1.20260911.1

What's Changed

• Move Existing SQLite Sentry routing to exception details by @jtolio in #7246
• Update capnp-cpp to v2 head (Executor::isCurrent + setRunnable ordering) by @danlapid in #7281
• Upstream patches by @ketanhwr in #7285
• Additional streams test consolidation gaps by @jasnell in #7182
• Expose compatibility-date.capnp and add AGENTS.md guidance for new APIs by @harrishancock in #7274
• Remove experimental tag from auto_grpc_convert by @mar-cf in #7284
• fix(web-socket): only log internal errors in abort task by @git-bruh in #7287
• cleanup: migrating cxx to wd_ rules by @mikea in #7289
• [tsan] fix rust std/tsan compatibility by @mikea in #7280
• [tsan] run all tests under tsan by @mikea in #7294
• Address multiple TS-streams defects / clarifications by @jasnell in #7183

Full Changelog: v1.20260909.1...v1.20260910.1