v15.4.0-canary.38

Core Changes

• [dynamicIO] fix: do not apply import tracking transform in edge: #79284
• Turbopack build: Fix type: module with output: standalone: #79292
• [TypeScript Plugin] Moved the diagnostics' positions to the prop's type instead of the value for client-boundary warnings: #79193
• Use onPostpone to determine if segment prefetch is partial: #79299
• Enable ppr when dynamicIO is enabled: #79302

Misc Changes

• build(next-swc): Update swc_core to v25.0.0: #79319
• Disable dynamicIO in global default cache handler test: #79300
• Enable PPR in Dynamic IO tests: #79301

Credits

Huge thanks to @lubieowoce, @timneutkens, @kdy1, @devjiwonchoi, and @unstubbable for helping!

v15.4.0-canary.37

Core Changes

• [devtool] initial support for segment explorer: #78858
• Client router should discard stale prefetch entries for static pages: #79309

Misc Changes

• fix(turbopack): prepend a question mark in AssetIdent display: #78977
• Update Turbopack development test manifest: #79278
• Update Turbopack production test manifest: #79277
• Update Rspack production test manifest: #79275
• Turbopack: remove dead code: #79280
• perf(turbopack): Use rayon threadpool for minify(): #79261
• Revert "perf(turbopack): Use rayon threadpool for minify()": #79296
• perf(turbopack): Update sourcemap to make flatten() faster: #79297
• docs: streaming responses with pages API routes: #79269
• feat: --rspack flag for create next app: #79077
• Do not run CI for modifying changeset related files: #79315

Credits

Huge thanks to @xusd320, @huozhi, @mischnic, @kdy1, @leerob, @SyMind, @unstubbable, and @devjiwonchoi for helping!

v15.4.0-canary.36

Core Changes

• chore(dev-overlay): Minor cleanups to useDelayedRender hook: #79119
• Update font data: #79227
• Rename define-env-plugin.ts to define-env.ts: #79224
• Always pass implicit/soft tags into the CacheHandler.get method: #79213
• fix(dev-overlay): Ignore right clicks on the indicator draggable: #79120
• Fix dangling promise in unstable-cache: #79248
• Revert "Partial Fallback Prerendering Route Shells (#69282)": #79258

Misc Changes

• [ts-next-plugin] test: add client-boundary test: #79194
• Reland: Fix false-positive "use cache" misplacement error: #79222
• Turbopack: Allow fully dynamic import() in node_modules: #79153
• Update Turbopack development test manifest: #79233
• Docs: Fix page order in Getting Started: #79240
• Docs IA 2.0: Server and Client Components: #79143
• Docs IA 2.0: Delete rendering section: #79244
• Docs: Fix syntax highlighting, add missing js code blocks: #79246
• perf(turbopack): Implement ShrinkToFit for AutoMap: #79218
• docs: add missing links and imports to cacheLife and cacheTag for prerender-missing-suspense error: #79247
• test: fix snapshots in failing tests: #79254

Credits

Huge thanks to @bgw, @wbinnssmith, @devjiwonchoi, @unstubbable, @timneutkens, @delbaoliveira, @kdy1, @lubieowoce, @ijjk, and @wyattjoh for helping!

v15.4.0-canary.35

Core Changes

• [dynamicIO] model pathname access in metadata as async : #79136
• Update font data: #79179
• bugfix (pages): assetPrefix should not cause hard nav in development: #79176
• Reland "Ensure mangling is disabled for dev runtime builds (#75297)": #79201
• docs: add graceful error boundary example: #77781
• turbo-tasks: Encode location information into panics: #78945
• feat(turbopack): Add basic compilation event support: #78785

Misc Changes

• Update Rspack production test manifest: #79185
• Update Turbopack production test manifest: #79186
• Update Rspack development test manifest: #79184
• Docs: Change mjs codeblocks to js : #79163
• chore: Update DevEx team changes in labeler: #79191
• Docs: Visual nits: #79198
• Docs IA 2.0: Move Edge Runtime information to API reference: #79152
• Prettier ignore changeset's format: #79203
• perf(turbopack): Do not inline synthesized content for sourcemaps: #79173
• Revert "Update mappings in launch.json to improve debugging in VSCode (#76559)": #79206
• perf(turbopack): Use Byte::from_static when possible: #79215
• Add recent Turbopack reformats to blame-ignore: #79187
• perf(turbopack): Drop AST node before generating source maps: #79219
• [turbopack] Delete the read_glob function: #79166

Credits

Huge thanks to @gnoff, @icyJoseph, @delbaoliveira, @devjiwonchoi, @kdy1, @ztanner, @ijjk, @feedthejim, @wbinnssmith, @unstubbable, @Cy-Tek, @mischnic, and @lukesandberg for helping!

v15.4.0-canary.34

Core Changes

• [build-sourcemaps] Remove unused static workers: #79107
• fix: cli test failed when using rspack: #79081
• [build-sourcemaps] Allow inspecting prerender worker: #79098
• Add initial modifyConfig hook: #79162
• Re-land updated bundler for pre-bundling: #79164

Misc Changes

• Turbopack: Make turbopack-core Rust 2024: #79131
• Docs: Add PPR page to getting started section: #79076
• Update Turbopack production test manifest: #79139
• Update Turbopack development test manifest: #79140
• Update Rspack production test manifest: #79138
• Fix false-positive "use cache" misplacement error: #79151
• docs: use single quote for 'use client' directive: #79114
• docs: improve 'use client' directive and client components: #79115
• Turbopack: remove unused EcmascriptInputTransform::CommonJs: #79148
• [test] Add debug-brk package script: #79097
• perf(turbopack): Optimize next_page_static_info: #79009
• Reference the workUnitStore when determining bailout to CSR: #79118
• Revert "Fix false-positive "use cache" misplacement error": #79160
• build: Update swc_core to v24.0.0: #79103
• docs: Fix grammar in vitest.mdx (How to set up Vitest with Next.js): #78654
• [release] enable changesets: #79035
• Remove uses of read_glob from node_native_bindings: #79154
• chore(turbopack): Add a span for sourcemap generation: #79170
• Add rustc-ice files to gitignore: #79167
• Update Rspack development test manifest: #79174

Credits

Huge thanks to @wbinnssmith, @delbaoliveira, @unstubbable, @eps1lon, @devjiwonchoi, @mischnic, @kdy1, @gnoff, @SyMind, @ijjk, @chipit24, and @lukesandberg for helping!

v15.4.0-canary.33

Core Changes

• patch react via recast instead of string replacements: #78916
• [link] Avoid inlining of LinkProps in emitted declarations: #78773
• [next-config-ts] fix: read tsconfig file using TypeScript API: #79055
• Replace node:url usage in server-utils: #79094

Misc Changes

• Docs IA 2.0: CSS: #78996
• Update Rspack production test manifest: #79072
• docs: Fix grammar on Update static-exports.mdx: #79091
• Update Rspack development test manifest: #79071
• perf(turbopack): Update modularize_imports: #79012
• build: Update swc_core to v24.0.0: #79092
• Revert "build: Update swc_core to v24.0.0": #79102
• chore(CI): Add back test retries (again) to arewerspackyet tests: #79014
• Turbopack: hash next/font filename to shorten it: #79089
• Upgrade lightningcss: #79096
• Turbopack: refactor into traverse_edges_fixed_point: #79078
• [test] Move test selectors as close to the actual value as possible: #78931
• test: split basic HMR test into multiple files: #79064
• test: split full reload HMR test into multiple files: #79065
• Update rust toolchain to 2025-05-12: #79099
• Rust: Update safe crates to 2024 Edition: #79104
• build(next-swc): Drop swc_bundler: #79113
• chore(CI): Split basepath test suite into smaller and more parallel test suites: #78892
• test: split error recovery HMR test into multiple files: #79066
• test: split hot module reload HMR test into multiple files: #79067
• test: remove unnecessary conditionals in error recovery tests: #73625
• Revert toolchain update to 2025-05-12: #79117
• test: replace duplicate test utils to next instance: #73624
• chore(CI): Split i18n-data-fetching-redirect test suite into smaller and more parallel test suites: #78893
• fix: pnp test cases failed when using rspack: #79084

Credits

Huge thanks to @devjiwonchoi, @bgw, @SyMind, @lubieowoce, @eps1lon, @delbaoliveira, @chipit24, @kdy1, @ijjk, @timneutkens, @mischnic, and @wbinnssmith for helping!

v15.4.0-canary.31

Core Changes

• Prevent "use cache" timeout errors from being caught in userland code: #78998

Misc Changes

• chore(CI): Split next-form tests into smaller suites/files that can be run more-in-parallel: #78891
• fix(CI): Remove comments from labeler config: #79015
• Turbopack next/font: Use a custom enum instead of Result for failed local font files: #78941
• Update middleware prefetch test: #79025

Credits

Huge thanks to @bgw, @wbinnssmith, @unstubbable, and @ijjk for helping!

v15.4.0-canary.30

Core Changes

• Fix --no-mangling for "use cache" functions: #78993
• chore: update rspack to 1.3.9: #78984
• [not-found] Add global-not-found convention: #78783
• [not-found] support metadata exports of global-not-found: #78961

Misc Changes

• fix(CI): Wait for lock when running apt-get: #78979
• chore(CI): Add a few more turbopack paths to labeler config: #78980
• chore(CI): Add Rspack labeler config: #79004
• perf(turbopack): Remove needless clone of SWC AST: #79007

Credits

Huge thanks to @unstubbable, @bgw, @SyMind, @huozhi, and @kdy1 for helping!

v15.4.0-canary.29

Misc Changes

• Turbopack: cache directory creation: #78729
• Update Turbopack production test manifest: #78988
• Update Turbopack development test manifest: #78989

Credits

Huge thanks to @sokra for helping!

v15.4.0-canary.28

Core Changes

• Treat _debugInfo as a wellknown property for sync request data access purposes: #78942
• chore(CI): Run rspack tests in build_and_test.yml: #78757
• bugfix: Fix a bug that caused conflicting assets when adding a child compiler: #78011
• [Fix] Inverse prefetch segment for Pages routes: #78932
• Fix tracing of server actions imported by client components: #78968
• Revert "fix: alternate bundler support for dropping client page": #78974

Misc Changes

• Docs: Fix headings in Getting Started: #78965
• Docs IA 2.0: Delete empty optimizing folder: #78966
• chore(CI): Split trailing-slashes suite cases into smaller suites, port to more modern e2e framework: #78890
• Turbopack: properly replace __dirname and __filename: #78843
• perf(turbopack): Remove needless clone of sourcemap: #78972
• build: Update swc_core to v23.1.0 again with macos build fix: #78940

Credits

Huge thanks to @delbaoliveira, @bgw, @gnoff, @lukesandberg, @kdy1, @Karibash, @acdlite, @ijjk, and @ScriptedAlchemy for helping!