Sourced from next's releases.

v12.1.0

Core Changes

• Relay Support in Rust Compiler: #33702
• fix eslint link-passhref rule: #33857
• update webpack: #33831
• Flush buffered vitals metrics on page mount: #33867
• fix problem with HMR when middleware and page reference the same node_module: #33873
• Refactor page component getter in web server: #33759
• update NextResponse default redirect status to 307 to match docs: #33505
• Bug fix: dynamic page should not be interpreted as predefined page: #33808
• Group streaming experimental apis: #33878
• Encapsulate routing and initial hydration: #33875
• Optimize offline condition judgment: #33238
• Ensure external beforeFiles rewrites are handled with next/link: #33888
• Fix parsing params for i18n optional route in minimal mode: #33896
• Ensure browserslist extends works properly: #33890
• Fix image cache race condition: #33883
• Add support for Relay projects without artifactDirectory: #33918
• fix: handle jsxspreadattribute in inline-script-id eslint rule: #32421
• feat(next-swc): Update swc: #33724
• Update to latest version of amphtml-validator: #33967
• Warn in dev mode when script tags are added with next/head: #33968
• Ensure optional chaining in swc matches babel: #33995
• Use react-dom/server.browser in Node.js: #33950
• Ensure external middleware rewrite is handled correctly: #33962
• Update Terser to v5.10.0, fix minification issues: #33045
• Warn in dev mode when stylesheets are added using next/head: #34004
• Use ReadableStream in RenderResult: #34005
• Fix suffix ordering while streaming: #34011
• Don't use yarn if a package-lock.json file is found: #31926
• Do not warn when application/ld+json scripts are used with next/head: #34021
• Babel & next-swc: Fix exporting page config with AsExpression: #32702
• Detect per page runtime config for functions manifest: #33945
• Add JSDoc to config options: #32915
• Update font-stylesheet-gathering-plugin.ts: #30709
• Add decoratorMetadata flag if enabled by tsconfig: #32914
• fix: data url handling in css-loader: #34034
• Place 'charset' element at the top of : #28119
• Fix detection of anchor click events inside svg: #23272
• Allow passing nothing as custom jest config: #32328
• Fixes #31240: Adding a recursive addPackagePath function in webpack-config: #31264
• Require component rendered as child of Link to pass event to onClick handler: #27723
• Allow scroll prevention on hash change: #31921
• Add support for async fn / promise in next.config.js/.mjs: #33662
• Fix lazyRoot functionality for next/image: #33933
• Change SWC minify from beta to release candidate: #34056
• Make Router state immutable: #33925
• Stop exposing internal render and renderError methods from next/client: #34069
• Add api-utils helper for testing: #34078

... (truncated)

• 8545fd1 v12.1.0
• 1605f30 v12.0.11-canary.21
• 69aedbd Fix typo (#34480)
• f0f322c Remove deprecation for relative URL usage in middlewares (#34461)
• d4d79b2 Fix chunk buffering for server components (#34474)
• 74fa4d4 update webpack (#34477)
• b70397e Revert "Allow reading request bodies in middlewares (#34294)" (#34479)
• 4202011 Update font-optimization test snapshot (#34478)
• 1edd851 Allow reading request bodies in middlewares (#34294)
• ba78437 fix: don't wrap profile in firebase example (#34457)
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