Fix hot reloader edge case with broken webpack plugins: #15659
Add additional pageProps check: #15667
Error overlay should not be dismissable for a server error: #14011
Strictly type react-dev-overlay: #15669
Fix wrong asPath on 404: #15728
Complile for ES5 in webpack 5 build: #15708
Remove unused error: #15748
Fix asPath of rewrite without basePath: #15760
Improve router types: #15775
Fix dotenv loading with cascading values: #15799

Last checked 3 Oct 2026, 11:23 UTC

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9.5.2

Changes to review10 Aug 2020GitHub Release

Additional changes to review1Matched wording:migration guideThese matches may be harmless in context. Expand to see the excerpts.

The changelog points readers to a migration guide.
Add upgrade notes for Next.js 9.5: #15703

Core Changes

Fix hot reloader edge case with broken webpack plugins: #15659
Add additional pageProps check: #15667
Error overlay should not be dismissable for a server error: #14011
Strictly type react-dev-overlay: #15669
Fix wrong asPath on 404: #15728
Complile for ES5 in webpack 5 build: #15708
Remove unused error: #15748
Fix asPath of rewrite without basePath: #15760
Improve router types: #15775
Fix dotenv loading with cascading values: #15799

Solve large portion of webpack 5 deprecation warnings: #15806

Fix some webpack 5 deprecation warnings: #15797

Rename exportTrailingSlash to existing trailingSlash property: #15768

Support persisting the dev cache buster: #15827

Fix CSS grid-column shorthand syntax: #15848

Add missing nomodule polyfills and suggest using features only up to ES2019 for browser compatibility: #15772

Bug fix: Font optimization: #15644

Progress bar for static build: #15297

Incremental static generation and regeneration in build output table: #14365

Add support for fallback: 'blocking': #15672

fixed issue with runtime-config returning undefined when building or in a development environment: #15777

Disallow basePath: false for internal routes: #15837

Run Fast Refresh Loader in Babel Loader: #15851

Add experimental image post-processing: #15875

Allow absolute urls in router and Link: #15792

Enhance module not found error: #15860

Normalize serverless asPath value: #15914

Adjust overlay modal padding on mobile: #15915

Disallow re-export all exports from Next.js pages: #14325

Delay server start message until it's listening: #15929

Warn when Fast Refresh is disabled (React <16.10): #15931

Remove querystring from the client: #15378

Improve Vercel's badge: #15946

notify component when route hash changes: #13894

Added Friendly error for res.redirect 🐝: #15844

Fix asPath normalizing for non-dynamic pages: #15960

Make helpers.ts compatible with ie11: #15973

Bug fix: Font optimization: #15984

Fix amphtml link rel not respecting basePath: #15949

Add browser polyfils for Node.js modules (webpack 5 backwards compat): #16022

Move next-codemod to Next.js monorepo: #15536

Resolve alias modules: #16033

Add cli for @next/codemod: #16039

Do not bundle caniuse-lite: #16048

upgrade @ampproject/toolbox-optimizer to 2.6.0: #16043

Do not assign to readonly property in Safari: #16051

Improvements - Font optimizations: #16031

Don’t prevent the browser’s default behavior for Alt key: #16003

Documentation Changes

Use next dev for the getting started page: #15705
Update smart-cdn link: #15707
Document regex support for custom routes: #15714
Add upgrade notes for Next.js 9.5: #15703
Add clarification of routing to a dynamic route: #15771
Add docs page for Create Next App: #15454
Explain Sass Extensions in CSS Docs: #15830
Update next build docs to include the --profile argument: #15766
Remove outdated docs on serverless builds and runtime configs: #15907
Example for Redirects (Custom routes): #15411
fix typo in export-all-in-page: #15925
Add variable expansion note: #15917
Update Fast Refresh doc: #15923
Add PWA Example: #15433
Typo fixes in data-fetching document: #16004

Example Changes

Fix with-sentry: #15694
Update next-transpile-modules in with-react-intl example: #15730
Update next-transpile-modules in all examples: #15739
Fix gh-pages deploy script: #15724
examples: Update with-electron .gitignore: #15783
Remove dotenv from auth0 Next.js example: #15398
with-electron-typescript build error fix: #15803
Updated with-passport example to fix syntax errors: #15831
Remove dotenv from with-firebase example: #15743
await ctx.renderPage() in examples for TypeScript: #15528
add payment description for with-stripe-typescript: #15888
Replace Graphcool with dedicated example GraphQL server using Prisma: #15752
Fix: with-mongodb-mongoose example improper fetch error handling: #15856
Fix with-firebase-authentication example: Update the cookie when ID token refreshes on client: #15628
remove dotenv from with-stripe-typescript: #15814
Fix typos in blog-starter and blog-starter-typescript: #15807
examples/custom-server-typescript upgrade dependencies: #15833
Fix awaiting for sync method of remark in cms examples: #15555
Update with-apollo examples to merge existing cache: #15804
Update react-md examples for v2: #15723
Remove horizontal scroll in CMS examples: #15921
updated active-class-name example to also demo a [slug] path: #15924
with-react-native-web: move meta viewport to _app.js: #15945
example application on Redis (Lambda.store): #15532
Update Sentry example to improve display of server errors: #15495
Remove another broken demo link from with-graphql-faunadb: #16007
Typo fix (built time -> build time): #16006
Fix with-i18n-rosetta example: #16023

Misc Changes

Stabilize another test: #15697
Test that overlay appears: #15850
Test macOS on canary: #15899
Test macOS on canary with separate workflow: #15901
Add tests for querystring-relative urls: #15911
Add missing gitignore
Remove common PR title prefixes

Credits

Huge thanks to @ijjk, @eKhattak, @lfades, @matamatanot, @Janpot, @jonespen, @RafalFilipek, @martpie, @ronaldstevanus, @samrobbins85, @DavidLemayian, @msreekm, @timneutkens, @kmturley, @MehediH, @marcmll, @Timer, @kripod, @prateekbh, @gelbartj, @darshkpatel, @jtaox, @agstover, @Weakky, @lwpamihiranga, @joejknowles, @styfle, @agarwalrounak, @rdimaio, @nirtamir2, @rokinsky, @JClackett, @Siggnja, @atcastle, @mlaursen, @joris, @robintom, @AubreyHewes, @epiacentini, @raibima, @evilrabbit, @tomdohnal, @markozxuu, @svenanderson, @hokaccha, @amiralies, @lqze, @sebastianbenz, @yuheiy, and @StarpTech for helping!

9.5.2#

Core Changes

9.5.2#

Core Changes

Documentation Changes

Example Changes

Misc Changes

Credits

9.5.2

9.5.2