Core Changes

• Turbopack: Expose an environment variable for exposing the detail field of issues: #86518
• Turbopack: inner graph tree shaking: #85973
• [next-upgrade] Fall back to npx if yarn dlx is not available: #86384
• Update font data: #86521
• Convert any export from a 'use cache' module to a cache function: #86014

Misc Changes

• Migrate required-server-files-ssr-404 to be isolated: #86515
• Turbopack: fixup route hashes generation: #86502
• Bump swc: #86496
• Try to improve typed-routes test flakyness: #86512
• Use retry in tests instead of requesting page: #86535
• Turbopack: Use Debug instead of Display for ValueDebugFormat impl on RcStr: #86522
• [test] Add test fixture for runtime error in 'use cache': #86499
• Migrate app-dir-export test to be isolated: #86534
• Turbopack: write symlinks to access transitive serverExternalPackages : #86375
• Fix no-double-tailwind-execution flake: #86549
• Update Rspack development test manifest: #86531
• Turbopack: slightly fewer turbo tasks calls during resolving: #86542
• Turbopack: remove OptionStringifiedSourceMap: #86547

Credits

Huge thanks to @bgw, @mischnic, @eps1lon, @vercel-release-bot, and @unstubbable for helping!