Cloudflare workerd

What's Changed

• update bazel registry to a mirror by @anonrig in https://github.com/cloudflare/workerd/pull/5774

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251225.0...v1.20251227.0

What's Changed

• throw appropriate signal.reason on empty by @anonrig in https://github.com/cloudflare/workerd/pull/5762
• Convert IdentityTransformStream to use state machine with autogate by @jasnell in https://github.com/cloudflare/workerd/pull/5763
• improve streams wpt coverage by @anonrig in https://github.com/cloudflare/workerd/pull/5759
• throw appropriate error for non-byob stream mode by @anonrig in https://github.com/cloudflare/workerd/pull/5748
• Fix TextEncoderStream surrogate pair handling across chunks by @anonrig in https://github.com/cloudflare/workerd/pull/5680
• fix streams wpt piping/pipe-through.any.js by @anonrig in https://github.com/cloudflare/workerd/pull/5745
• fix streams backpressure condition check by @anonrig in https://github.com/cloudflare/workerd/pull/5758
• Add @all-autogates test variant to wd_test by @danlapid in https://github.com/cloudflare/workerd/pull/5760

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251224.0...v1.20251225.0

What's Changed

• Add state machine utility by @jasnell in https://github.com/cloudflare/workerd/pull/5750
• Enable nodejs style global timers with a compat flag. by @danlapid in https://github.com/cloudflare/workerd/pull/5751
• Convert CompressionStream to use StateMachine behind autogate by @jasnell in https://github.com/cloudflare/workerd/pull/5755
• No need to override the setImmediate/clearImmediate functions by @jasnell in https://github.com/cloudflare/workerd/pull/5757
• Fix use-after-move in runAlarm exception logging by @a-robinson in https://github.com/cloudflare/workerd/pull/5761
• Add tracing spans for input and output gates for hold and wait by @shrima-cf in https://github.com/cloudflare/workerd/pull/5666

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251223.0...v1.20251224.0

What's Changed

• Add rpc_params_dup_stubs compat flag. by @kentonv in https://github.com/cloudflare/workerd/pull/5733
• Update dependencies by @workers-devprod in https://github.com/cloudflare/workerd/pull/5734
• [nfc] Elide more STW memory allocations, simplify code by @fhanau in https://github.com/cloudflare/workerd/pull/5737
• fix promises export for readline & inspector by @anonrig in https://github.com/cloudflare/workerd/pull/5740
• [build] Transition Rust+cargo to bzlmod by @fhanau in https://github.com/cloudflare/workerd/pull/5735
• implement jsg::NonCoercible in Rust by @anonrig in https://github.com/cloudflare/workerd/pull/5730
• [o11y][nfc] Deduplicate user tracing observer with internal version by @fhanau in https://github.com/cloudflare/workerd/pull/5511
• [build] Move workerd-cxx to bzlmod by @fhanau in https://github.com/cloudflare/workerd/pull/5736

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251221.0...v1.20251223.0

What's Changed

• Add routingMode option to GetDurableObjectOptions by @MellowYarker in https://github.com/cloudflare/workerd/pull/5677
• Ensure that the native dgram node API does not introduce a breaking change by @petebacondarwin in https://github.com/cloudflare/workerd/pull/5729

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251220.0...v1.20251221.0

What's Changed

• Allow sending Fetcher (service bindings) over RPC by @kentonv in https://github.com/cloudflare/workerd/pull/5693
• move Isolate to it's own struct by @anonrig in https://github.com/cloudflare/workerd/pull/5717
• BodyBufferInputStream migration.. take 3 by @jasnell in https://github.com/cloudflare/workerd/pull/5731
• EW-9753 Enable deprecation warnings for attaching to refcounted objects by @fhanau in https://github.com/cloudflare/workerd/pull/5513

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251219.0...v1.20251220.0

What's Changed

• Fix JSRPC Return event timing to fire when handler returns by @danlapid in https://github.com/cloudflare/workerd/pull/5721
• [build] 12-17-25 Update bzlmod deps by @fhanau in https://github.com/cloudflare/workerd/pull/5722
• deflake container tests by @anonrig in https://github.com/cloudflare/workerd/pull/5720
• Fix Body::text() and Body::json() to handle BOMs by @anonrig in https://github.com/cloudflare/workerd/pull/5621
• handle different builtin types in rust jsg registry by @anonrig in https://github.com/cloudflare/workerd/pull/5719
• Suppress WorkerTracer warning for duplicate alarm requests by @mar-cf in https://github.com/cloudflare/workerd/pull/5685

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251218.0...v1.20251219.0

What's Changed

• disable info level logging in perfetto by @dcarney-cf in https://github.com/cloudflare/workerd/pull/5714
• throw when using a shared backing store for ArrayBuffer construction by @dcarney-cf in https://github.com/cloudflare/workerd/pull/5715
• Deduplicate some minor streams backpressure calculations by @jasnell in https://github.com/cloudflare/workerd/pull/5716
• [NFC] Let's all thank claude for helping complete the jsg docs by @jasnell in https://github.com/cloudflare/workerd/pull/5700
• Refine fetch iterable type support to better handle edge cases by @jasnell in https://github.com/cloudflare/workerd/pull/5711
• handle invalid utf-16 surrogates on TextDecoder by @anonrig in https://github.com/cloudflare/workerd/pull/5673
• Copy featureFlagsForFl rather than pass by reference by @danlapid in https://github.com/cloudflare/workerd/pull/5712
• Make update-deps.py generate bzlmod-compatible output by @npaun in https://github.com/cloudflare/workerd/pull/5691

New Contributors

• @dcarney-cf made their first contribution in https://github.com/cloudflare/workerd/pull/5714

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251217.0...v1.20251218.0

What's Changed

• Python snapshots: Refactor hiwire serialization/deserialization by @hoodmane in https://github.com/cloudflare/workerd/pull/5697
• Remove default date on fetchIterableTypeSupport by @danlapid in https://github.com/cloudflare/workerd/pull/5703
• Add patch_env to Python workers sdk by @hoodmane in https://github.com/cloudflare/workerd/pull/5687
• Account for boxed strings in body iterable handling by @jasnell in https://github.com/cloudflare/workerd/pull/5705
• CFSQL-1424: Add served_by_colo to meta information by @FlorentCollin in https://github.com/cloudflare/workerd/pull/5658
• Update CODEOWNERS by @edmundhung in https://github.com/cloudflare/workerd/pull/5706
• Use the RingBuffer for standard streams write requests also by @jasnell in https://github.com/cloudflare/workerd/pull/5701
• Run rollback code in ExplicitTxn dtor before clearing the currentTxn by @justin-mp in https://github.com/cloudflare/workerd/pull/5707

New Contributors

• @FlorentCollin made their first contribution in https://github.com/cloudflare/workerd/pull/5658

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251216.0...v1.20251217.0

What's Changed

• Update dependencies by @workers-devprod in https://github.com/cloudflare/workerd/pull/5692
• Fix user tracing of DO SQL queries and add system tracing of them by @a-robinson in https://github.com/cloudflare/workerd/pull/5688
• run container tests on CI by @anonrig in https://github.com/cloudflare/workerd/pull/4421
• Use RingBuffer in internal.h/c++ instead of std::list by @jasnell in https://github.com/cloudflare/workerd/pull/5689

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251214.0...v1.20251216.0

What's Changed

• Couple of minor cleanups in streams/internal.c++ by @jasnell in https://github.com/cloudflare/workerd/pull/5690

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251213.0...v1.20251214.0

What's Changed

• [chore] number of minor updates/modernizations to jsg code by @jasnell in https://github.com/cloudflare/workerd/pull/5683
• Python: Add from workers import env for top level env by @hoodmane in https://github.com/cloudflare/workerd/pull/5682

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251212.0...v1.20251213.0

What's Changed

• [nfc] Clean up r2GetClient(), removing getHttpClientWithSpans() by @fhanau in https://github.com/cloudflare/workerd/pull/5557
• [perf][o11y] Avoid another event-level memory allocation when internal tracing is not being used by @fhanau in https://github.com/cloudflare/workerd/pull/5586
• Add IoContext::tryCurrent() by @jasnell in https://github.com/cloudflare/workerd/pull/5676
• Fix TextDecoderStream fatal default and assert.throws with Error constructor by @anonrig in https://github.com/cloudflare/workerd/pull/5674
• make sure TextDecoder.decode accepts SharedArrayBuffer by @anonrig in https://github.com/cloudflare/workerd/pull/5672
• Reapply "Add initial Rust JSG integration with error support" by @anonrig in https://github.com/cloudflare/workerd/pull/5645
• Eliminate duplicated RefcountedWrapper structs by @jasnell in https://github.com/cloudflare/workerd/pull/5679
• [nfc] Combine update-deps.py's templates by @npaun in https://github.com/cloudflare/workerd/pull/5669

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251211.0...v1.20251212.0

What's Changed

• Remove IoContext timed out log from actors by @danlapid in https://github.com/cloudflare/workerd/pull/5659
• [o11y][nfc] Remove dependency on PipelineTracer by @fhanau in https://github.com/cloudflare/workerd/pull/5519
• [NFC] Add some generated documentation for streams development by @jasnell in https://github.com/cloudflare/workerd/pull/5668
• handle bad/invalid chunks as input more defensively by @anonrig in https://github.com/cloudflare/workerd/pull/5671
• [o11y][nfc] Consolidate TailStreamWriterState | TailStreamWriter by @fhanau in https://github.com/cloudflare/workerd/pull/5593
• [o11y] Avoid cloning tail event when dispatching it to single tail worker by @fhanau in https://github.com/cloudflare/workerd/pull/5614

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251210.0...v1.20251211.0

What's Changed

• Bump urllib3 from 2.3.0 to 2.6.0 in /src/pyodide/internal/sphinx by @dependabot[bot] in https://github.com/cloudflare/workerd/pull/5651
• Update V8 to 14.3.127.16. by @jp4a50 in https://github.com/cloudflare/workerd/pull/5664
• Revert SQLITE upgrade back to 3.47 by @zachlefevre in https://github.com/cloudflare/workerd/pull/5667

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251209.0...v1.20251210.0

What's Changed

• Update dependencies by @workers-devprod in https://github.com/cloudflare/workerd/pull/5654
• Use ReverseIoOwn in makeReentryCallback(). by @kentonv in https://github.com/cloudflare/workerd/pull/5655
• Add workerdDebugPort binding for dynamic worker access by @danlapid in https://github.com/cloudflare/workerd/pull/5652
• Mark span time adjustment warning as nosentry. by @mar-cf in https://github.com/cloudflare/workerd/pull/5657

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251206.0...v1.20251209.0

What's Changed

• Remove error thrown if list of converted files is empty by @Naapperas in https://github.com/cloudflare/workerd/pull/5633
• Revert #5608 but keep the tests. by @kentonv in https://github.com/cloudflare/workerd/pull/5647
• Revert "add asan-release builds (#5644)" by @anonrig in https://github.com/cloudflare/workerd/pull/5649
• Upgrade SQLite to 3.51.1 by @jqmmes in https://github.com/cloudflare/workerd/pull/5648

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251205.0...v1.20251206.0

What's Changed

• Increment alarmVersion more selectively by @MellowYarker in https://github.com/cloudflare/workerd/pull/5639
• feat: Add WorkflowStepContext to step.do callback by @pombosilva in https://github.com/cloudflare/workerd/pull/5625
• Fix unfulfilled promise error when CustomEvent is destroyed early by @mar-cf in https://github.com/cloudflare/workerd/pull/5640
• Revert "feat: Add WorkflowStepContext to step.do callback" by @avenceslau in https://github.com/cloudflare/workerd/pull/5642
• Revert "Add initial Rust JSG integration with error support" by @anonrig in https://github.com/cloudflare/workerd/pull/5643
• add asan-release builds by @anonrig in https://github.com/cloudflare/workerd/pull/5644
• update workerd-cxx to get rid of deprecated methods by @anonrig in https://github.com/cloudflare/workerd/pull/5646

New Contributors

• @avenceslau made their first contribution in https://github.com/cloudflare/workerd/pull/5642

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251204.0...v1.20251205.0

What's Changed

• EMAIL-1327: Make enable_email_sending_queueing not experimental by @Skye-31 in https://github.com/cloudflare/workerd/pull/5626
• Add just new-test to create a test stub by @npaun in https://github.com/cloudflare/workerd/pull/5629
• Allow FormData to be passed as input to AI bindings by @thatsKevinJain in https://github.com/cloudflare/workerd/pull/5590
• Remove redundant compat flag from streams wpt config by @jasnell in https://github.com/cloudflare/workerd/pull/5635
• Add WorkerdDebugPort interface for dynamic RPC entrypoint access by @danlapid in https://github.com/cloudflare/workerd/pull/5568

New Contributors

• @Skye-31 made their first contribution in https://github.com/cloudflare/workerd/pull/5626

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251203.0...v1.20251204.0

What's Changed

• Only print late alarm if time discrepancy is large by @MellowYarker in https://github.com/cloudflare/workerd/pull/5623
• Refactor CompressionStreamImpl by @jasnell in https://github.com/cloudflare/workerd/pull/5580
• Add Jaeger tracing for waitForBookmark storage API by @justin-mp in https://github.com/cloudflare/workerd/pull/5622
• Allow omitting name while creating dynamic workers by @ketanhwr in https://github.com/cloudflare/workerd/pull/5574
• [clang-tidy] Add cppcoreguidelines-prefer-member-initializer and more checks by @fhanau in https://github.com/cloudflare/workerd/pull/5624
• Fix structuredClone() under enhanced_error_serialization. by @kentonv in https://github.com/cloudflare/workerd/pull/5627
• add initial jsg rust integration by @anonrig in https://github.com/cloudflare/workerd/pull/5378
• Standardize //src/workerd/api/tests package by @npaun in https://github.com/cloudflare/workerd/pull/5628

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20251202.0...v1.20251203.0