Core Changes

• fix: apply default export interop to next/config: #40224
• Improved route resolution in next-app-loader: #40109
• Add prefetch to new router: #39866
• Update next/future/image to support only width or only height: #40278
• Add experimental proxy timeout option: #40289
• Fix static info parsing when export data fetching method as variable: #40317
• fix(switchable-runtime): make dev server not break when wrong runtime config is exported: #40312
• Revert "Refactor Server Router": #40328
• fix(switchable-runtime): Make it possible to switch between edge and server runtime in dev: #39327

Documentation Changes

• docs: update get-static-paths.md: #40205
• Change image sizes docs to use em instead of px: #40288
• Change sizes docs to use max-width in media query: #40290
• docs: fix numbering in middleware docs: #40276

Example Changes

• Update next-forms example: #40284
• Migrate with-context-api example to typescript: #40297

Misc Changes

• fix(cli): delete temp file after extraction: #40259
• Fix test hydration check in Safari 10.1: #40285
• chore: turn off debug mode on issue validator: #40301

Credits

Huge thanks to @balazsorban44, @sumiren, @shuding, @timneutkens, @styfle, @atcastle, @HaNdTriX, @bcheidemann, @huozhi, and @hanneslund for helping!