vercel/next.js v12.0.4

on GitHub

Core Changes

• Update middleware eval checks: #30883
• Optimize the SSR middleware runtime size: #30906
• Improve error handling in the SSR middleware: #31057
• Ensure decode error in minimal mode responds with 400 not 500: #31037
• Update ServerlessPlugin to use chunkGraph: #31058
• Fix custom 404 page when concurrentFeatures is enabled: #31059
• Upgrade React alpha and experimental dependencies to latest: #31039
• Change disabled SWC message to Log.info: #31091
• Add render prop support to <Main>: #30156
• Change .web extension of document page to part of path: #31116
• Enable code splitting for the web runtime build: #31090
• Give priority to document.title over h1 when announcing page change: #31147
• Add webpack5 namespace to fix type errors: #31140
• Add warning when image has unused sizes prop: #31064
• Add experimental next-swc jest transform: #30993
• fix: support --cache-strategy ESLint argument (fixes #29926): #29928
• fixes #31060: NullReferenceException: #31061
• use loader-utils 2 for resolve-url-loader to fix ./data: urls in sass: #31134
• Update reason message for isolatedModules and esModuleInterop: #31150
• Add input/output test for 30091: #31166
• Fix useId mismatches on hydration: #31102
• Do not hide body when concurrentFeatures is enabled: #31187
• Fix middleware i18n rewrites: #31174
• next-swc: Add displayNameAndId of styled-components: #31189
• Use require.resolve to detect "framework" packages (fix pnpm): #21048
• Add all cases where webpack5 type is used: #31206
• Add test for styled-components SWC transform disabled: #31214
• Add initial standalone build handling: #31003
• fix(middleware): expose CryptoKey and globalThis.CryptoKey: #31193
• Disable styled-components displayName in production: #31216
• fix(31013): add base path to preflight request url: #31101
• share collections in middleware vm context: #31043
• Support assetPrefix specific protocol: #31213
• upgrade webpack: #31034
• Update swc: #31233
• run middleware parser handler only for middleware modules: #31219
• Update swc minifier: #31242
• Fix process.env overriden in web runtime: #31261
• fix: replaced useless let: #31239
• Experimental next/jest config helper: #31246
• correctly assess node equality when nonce attribute is present: #27573
• bugfix/i18n Do not support the second locale in the pathname: #31229
• Fix typo in next build log: #31295
• Ensure next/jest is published: #31296
• Update swc for jsc.paths: #31290
• next/jest: Ensure typeof window is not transformed in jsdom environment: #31304
• Output where preference is saved: #31305
• Upgrade webpack: #31313
• Ensure asPath is correctly normalized in minimalMode with i18n: #31281
• Automatically using different port to start dev server for non-explicit port: #30736
• Resolve stream piper on complete shell for renderToReadableStream: #31186
• fix(middleware): fetch resource may be a URL instance (or any stringifiable value): #31260
• Ensure NODE_ENV is replaced correctly with swc: #31274
• Add support for jsxImportSource in tsconfig/jsconfig: #31358
• fix(30724): clear "x-middleware-next" header when chaining middlewares: #30866
• Add eslint rule to prevent importing next/server outside of _middleware: #30973
• Don't proxy middleware if host is the same: #31180
• Add support for legacy decorators through tsconfig/jsconfig: #31376
• Update swc & fix styled-jsx: #31407
• show (middleware only) when a middleware is added to the compiler: #31409
• Add minify debug env var to investigate minifier bugs: #31417
• add filename to babel warning about anonymous function default exports: #31322
• Refactor server/render for SSR streaming: #31231
• Remove moment locale replace from craCompat as it's a default in Next.js 12: #31431
• Fix basePath replacing server-side and normalizeLocalePath() when path is empty string: #30978
• Close stream when fatal error occurs: #31164
• middleware: add request referrer support: #31343

Documentation Changes

• Expands next/script documentation: #31063
• Fix minor typos: #31161
• Include www subdomain example in Domain Routing: #30487
• Fix heading levels in URL imports docs.: #31163
• Update upgrading.md: #31173
• docs: fix typo in css-in-js page: #31244
• Testing Docs: Add links to jump to sections: #31311
• Changes in dev script (package.json): #31245
• Typo fixes on Markdown files: #31380
• Update data-fetching.md: #31394
• Update image-optimization.md: #31401
• Fix function syntax for API Routes documentation: #31414
• docs: next-iron-session renamed to iron-session: #31292
• Clarify with commas: #31224
• docs(auth): fix iron-session example url + API: #31413

Example Changes

• Optimise bundle size for with-supertokens example: #31040
• Update remark and remark-html dependencies: #31051
• Docs/examples/with iron session updates: #30956
• Fix Auth0 Example: #31284
• Updates with-supertokens example to add sign in with apple: #31200
• Auth0 Example: getSession should be called with req and res: #31330
• examples: fix README with google analytics: #31384
• Add Playwright example: #29426
• Fix storybook styled-jsx example with styled-jsx 5: #31357

Misc Changes

• improve windows support for benchmark: #31032
• Add integration test for Suspense and streaming: #31197
• Bump cancel-workflow-action to 0.9.1: #31210
• test: skip flaky dynamic import tests: #31221
• Add integration test of API routes with concurrentFeatures enabled: #31227
• Update contributing doc with trouble shooting section for swc: #31265
• Fix test-pnp stalling in CI: #31282
• Fix failed-loading-swc link in Troubleshooting: #31314
• Maintain co-authors when kodiak merges: #31316
• bugfix/second-locale-in-pathname remove console.log: #31289
• Rewrite send-trace-to-jaeger in Rust: #31392
• Ensure Git feature.manyFiles is enabled: #31408
• Remove .only and ensure jest lint rules apply for all tests: #31456
• Ensure swc dep is copied for isolated tests: #31462

Credits

Huge thanks to @javivelasco, @shuding, @rishabhpoddar, @chemicalkosek, @huozhi, @timneutkens, @devknoll, @sokra, @KittyGiraudel, @styfle, @padmaia, @housseindjirdeh, @OKinane, @KonstHardy, @BrandonRomano, @leerob, @furcan, @dusanralic, @kdy1, @elliottsj, @vvo, @Kikobeats, @hi-ogawa, @panva, @genetschneider, @thundermiracle, @stefano-rainieri, @ericbiewener, @vordgi, @stevejarvis, @ihmpavel, @ijjk, @delbaoliveira, @matamatanot, @dyarfaradj, @iheyunfei, @thibautsabot, @ascorbic, @fytriht, @emzoumpo, @onurtemiz, @a-ursino, @mxschmitt, @knezevicdev, @bywo, @OArnarsson, and @TurekBot for helping!