What's Changed

• Fix flaky snapshot-testing by @mcollina in #4367
• Actually flush the file in lib/mock/snapshot-recorder.js by @mcollina in #4378
• docs: clarify Node.js version support in LTS table by @mcollina in #4375
• cache: fix excessive caching and some other lack of caching by @fredericDelaporte in #4335
• feat(websocket): add handshake response info to undici:websocket:open diagnostic event by @tawseefnabi in #4396
• feat: add install() function to type definitions by @jsaguet in #4384
• build(deps): bump github/codeql-action from 3.29.2 to 3.29.5 by @dependabot[bot] in #4380
• build(deps): bump cronometro from 4.0.3 to 5.3.0 in /benchmarks by @dependabot[bot] in #4171
• build(deps): bump step-security/harden-runner from 2.12.0 to 2.13.0 by @dependabot[bot] in #4379
• fix: h2 CI by @metcoder95 in #4395
• feat: EventSource can be configured with reconnectionTime by @Uzlopak in #4260
• build(deps-dev): bump tsd from 0.32.0 to 0.33.0 by @dependabot[bot] in #4404
• eventsource: deflake reconnectionTime tests by @Uzlopak in #4406
• cache: change normaliseHeaders to normalizeHeaders by @Uzlopak in #4408
• build(deps-dev): bump jest from 29.7.0 to 30.0.5 by @dependabot[bot] in #4387
• build(deps-dev): bump cross-env from 7.0.3 to 10.0.0 by @dependabot[bot] in #4386
• cache-control: no-cache: use quoted-string form by @alxndrsn in #4177
• test: fix snapshot testing flaky test by @Uzlopak in #4410
• fix formdata constructor args mark optional by @tsctx in #4411
• Update WPT by @github-actions[bot] in #4358
• Update Cache Tests by @github-actions[bot] in #4096
• chore: improve imports and requires by @Uzlopak in #4418
• refactor: snapshot-recorder by @Uzlopak in #4413
• Update WPT by @github-actions[bot] in #4416
• fix: better set a finalizer on cloned response by @tsctx in #4419

New Contributors

• @tawseefnabi made their first contribution in #4396
• @jsaguet made their first contribution in #4384

Full Changelog: v7.13.0...v7.14.0

What's Changed

• MockAgent.prototype.get support ignoreTrailingSlash option by @lisez in #4344
• chore: more jsdoc and minor improvements for lib/api/readable.js, by @Uzlopak in #4351
• ci: skip Node.js 20 tests on Windows by @mcollina in #4353
• Update WPT by @github-actions[bot] in #4267
• feat(ProxyAgent) improve Curl-y behavior in HTTP->HTTP Proxy connections (#4180) by @caitp in #4340
• fix: detect and prevent redirect loops with Client/Pool by @mcollina in #4361
• remove node:buffer imports by @KhafraDev in #4362
• fix: remove deprecated maxRedirections option from types by @mcollina in #4363
• Amend the GC warning in the README to clarify that consuming bodies is recommended but not required by @mcollina in #4364
• fix(inteceptor/dump): handle preemptive network errors by @metcoder95 in #4354
• feat: add SnapshotAgent for HTTP request recording and playback by @mcollina in #4270

New Contributors

• @lisez made their first contribution in #4344

Full Changelog: v7.12.0...v7.13.0

What's Changed

• test: remove tspl on 2283 test by @Uzlopak in #4301
• chore: reduce amount of intermediate functions by @Uzlopak in #4298
• ci: disable shared builtin CI tests by @mcollina in #4276
• webidl: remove unnecessary parameters from webidl.converters.RequestInfo and webidl.converters.RequestInit by @Uzlopak in #4304
• fetch: remove await, add jsdoc for some body read functions by @Uzlopak in #4303
• test: use assert and not testcontext in issue-2283.js by @Uzlopak in #4306
• chore: jsdoc use @returns everywhere by @Uzlopak in #4302
• chore: fix typo by @pimothyxd in #4312
• build(deps): bump github/codeql-action from 3.28.18 to 3.29.2 by @dependabot[bot] in #4315
• feat: throw error when maxRedirections is used with undici.request() by @mcollina in #4311
• Clarify the type option of the cache interceptor by @fredericDelaporte in #4299
• cache: allow caching heuristically cacheable error status codes by @mcollina in #4318
• chore(doc): update undici vs fetch by @styfle in #4319
• don't set a finalizer on cloned request by @tsctx in #4320
• websocketstream: close readablestream properly by @KhafraDev in #4322
• add ping(websocket, payload) util by @KhafraDev in #4325
• fix sending ping with no payload by @KhafraDev in #4329
• refactor: eliminate eager llhttp promise creation by @mcollina in #4337
• Fix misleading cacheByDefault documentation by @fredericDelaporte in #4338
• add websocket to websocket diagnostic channels by @KhafraDev in #4321
• speed up flaky websocket test by @KhafraDev in #4343
• fetch: minor modifications by @Uzlopak in #4347
• fetch: make readable-stream methods sync by @Uzlopak in #4346
• remove creating an extra Promise just for common cleanup by @bmeck in #4339
• chore: extract createDeferredPromise from fetch/utils.js by @Uzlopak in #4345

New Contributors

• @pimothyxd made their first contribution in #4312
• @fredericDelaporte made their first contribution in #4299
• @bmeck made their first contribution in #4339

Full Changelog: v7.11.0...v7.12.0

What's Changed

• Update WPT by @github-actions in #4214
• feat(fetch): add zstandard decompression support by @J3m5 in #4238
• fix(debug): remove extra forward slash in logs by @aidant in #4236
• types: EventSource short handlers can be null by @Uzlopak in #4246
• remove finalizationregistry workaround by @mcollina in #4250
• build(deps): bump actions/dependency-review-action from 4.5.0 to 4.7.1 by @dependabot in #4255
• build(deps): bump github/codeql-action from 3.28.1 to 3.28.18 by @dependabot in #4252
• build(deps): bump codecov/codecov-action from 5.1.2 to 5.4.3 by @dependabot in #4253
• build(deps): bump ossf/scorecard-action from 2.4.1 to 2.4.2 by @dependabot in #4254
• Query unaware interceptors cache fix by @FelixVaughan in #4240
• docs: fix interceptor order description in compose method by @mcollina in #4251
• chore: require node native modules with node:-prefix by @Uzlopak in #4256
• fix: eventsource does not reconnect on network error by @Uzlopak in #4247
• fix: add guard by @GeoffreyBooth in #4262
• Extract webidl by @Uzlopak in #4259
• build(deps): bump peter-evans/create-pull-request from 7.0.6 to 7.0.8 by @dependabot in #4132
• build(deps-dev): bump fast-check from 3.23.2 to 4.1.1 by @dependabot in #4167
• build(deps): bump actions/upload-artifact from 4.5.0 to 4.6.2 by @dependabot in #4137
• build(deps-dev): bump tsd from 0.31.2 to 0.32.0 by @dependabot in #4168
• build(deps): bump hendrikmuhs/ccache-action from 1.2.14 to 1.2.18 by @dependabot in #4190
• build(deps): bump fastify/github-action-merge-dependabot from 3.11.0 to 3.11.1 by @dependabot in #4135
• build(deps): bump step-security/harden-runner from 2.11.1 to 2.12.0 by @dependabot in #4188
• build(deps-dev): bump borp from 0.19.0 to 0.20.0 by @dependabot in #4194
• Fix several WPT failures by @tsctx in #4263
• Update WPT by @github-actions in #4235
• node.js fetch is wrongly typed (#4271) by @bpasero in #4272
• Fix: Provide body on retry error, preserve socket by @fatal10110 in #4228
• add cause to WebSocket error by @KhafraDev in #4274
• doc: undici vs fetch by @FelixVaughan in #4245
• bench: add websockets by @tsctx in #3203
• webidl: remove fallback for USVString by @Uzlopak in #4264
• fix: Use correct Dispatcher.RequestOptions by @IvanDimanov-OfficeRnD in #4281
• feat: add install() function for global WHATWG fetch classes by @mcollina in #4286
• Fixed RedirectHandler type by @rahulyadav5524 in #4278
• feat(#4086): proxy keep alive by @metcoder95 in #4128
• Add cleanMocks to MockClient and MockPool by @DemianParkhomenko in #4176
• fetch: add missing new operator on TypeError instantiation in readAllBytes by @Uzlopak in #4297
• Skip failing wpts by @mcollina in #4294
• feat: add request body diagnostic channels by @legendecas in #4289
• Fix timer guards to avoid TypeError under fake‐timers and polyfilled … by @1ly4s0 in #4213
• cache: update MemoryCacheStore default limits by @mcollina in #4292
• fix: EnvHttpProxyAgent.Options should accept ProxyAgent.Options by @urugator in #4243

New Contributors

• @J3m5 made their first contribution in #4238
• @aidant made their first contribution in #4236
• @bpasero made their first contribution in #4272
• @IvanDimanov-OfficeRnD made their first contribution in #4281
• @rahulyadav5524 made their first contribution in #4278
• @DemianParkhomenko made their first contribution in #4176
• @1ly4s0 made their first contribution in #4213
• @urugator made their first contribution in #4243

Full Changelog: v7.10.0...v7.11.0

What's Changed

• Add "clientLifetime" option to close and remove connections from the pool after a specified time. by @dhalbrook in #4175
• remove spurious only by @mcollina in #4207
• add node v24 workflow by @tsctx in #4206
• Update WPT by @github-actions in #4172
• chore: add pnpm-lock.yaml to .gitignore by @styfle in #4227
• fix: agent memory leak by @styfle in #4223
• Add ability to detect when MemoryCacheStore reaches max size by @FelixVaughan in #4224
• feat(ProxyAgent): match Curl behavior in HTTP->HTTP Proxy connections by @caitp in #4180
• docs: correct example in FormData request by @inyourtime in #4226

New Contributors

• @dhalbrook made their first contribution in #4175
• @caitp made their first contribution in #4180
• @inyourtime made their first contribution in #4226

Full Changelog: v7.9.0...v7.10.0

What's Changed

• [Backport v6.x] append crlf to formdata body by @github-actions in #4210

Full Changelog: v6.21.2...v6.21.3

What's Changed

• build(deps): bump step-security/harden-runner from 2.10.2 to 2.11.1 by @dependabot in #4134
• Update WPT by @github-actions in #4155
• Update WPT by @github-actions in #4170
• feat: add new acceptNonStandardSearchParameters MockAgent option by @dario-piotrowicz in #4148
• fix: cache: treat cache-control request header case-insensitively by @alxndrsn in #4131
• cache: honour unqualified no-cache response directive by @alxndrsn in #4178
• build(deps): bump ossf/scorecard-action from 2.4.0 to 2.4.1 by @dependabot in #4079
• Ensure conflicting flat headers in HTTP/2 are combined correctly by @pimterry in #4196
• Add stats of client and pool to be accessible through agent by @tdeekens in #4157
• Fix missing code in diagnostics example by @islandryu in #4195
• Doc cors spec compliance by @FelixVaughan in #4202
• Restore cache tests & fix max-age behavior by @mcollina in #4198

New Contributors

• @tdeekens made their first contribution in #4157
• @islandryu made their first contribution in #4195
• @FelixVaughan made their first contribution in #4202

Full Changelog: v7.8.0...v7.9.0

What's Changed

• cache: more efficient sqlite indices by @ronag in #4142
• skip now failing wpts by @mcollina in #4145
• apply some sqlite pragma optimizations by @ronag in #4147
• types(websocket): Import from stream/web by @Jiralite in #4038
• cache: don't check size if not necessary by @ronag in #4140
• docs: fix inteceptors typo by @dario-piotrowicz in #4151
• Update WPT by @github-actions in #4141
• build(deps-dev): bump esbuild from 0.24.2 to 0.25.2 by @dependabot in #4130

New Contributors

• @Jiralite made their first contribution in #4038
• @dario-piotrowicz made their first contribution in #4151

Full Changelog: v7.7.0...v7.8.0

What's Changed

• fix: export UndiciHeaders type and set dispatch headers to UndiciHeaders by @dancastillo in #3849
• feat(h2): emit connectionerror upon GOAWAY frame by @metcoder95 in #4123
• Update WPT by @github-actions in #4126
• Update DNS caching example to include other interceptors, production configuration by @GeoffreyBooth in #4127
• feat: implement h2c client by @metcoder95 in #4118

New Contributors

• @GeoffreyBooth made their first contribution in #4127

Full Changelog: v7.6.0...v7.7.0

What's Changed

• Update WPT by @github-actions in #4067
• lib: limit string split length by @gurgunday in #4098
• docs/PULL_REQUEST_TEMPLATE: deep-link to certificate of origin by @alxndrsn in #4102
• cache: fix typo by @alxndrsn in #4101
• disable header de-duplication in test servers by @alxndrsn in #4110
• CacheRevalidationHandler: add missing header to comment by @alxndrsn in #4111
• Fix typo in Agent.md by @Exifers in #4115
• build(deps-dev): bump @matteo.collina/tspl from 0.1.1 to 0.2.0 by @dependabot in #4119
• fix 4105 by @KhafraDev in #4117
• Update WPT by @github-actions in #4100
• cache: ensure vary & revalidation headers are case-insensitive by @alxndrsn in #4112

New Contributors

• @alxndrsn made their first contribution in #4102
• @Exifers made their first contribution in #4115

Full Changelog: v7.5.0...v7.6.0