Core Changes

• Handle cross-page client reference contamination in development: #86591
• Match behavior of baseline-browser-mapping with caniuse-lite: #86653
• Turbopack: don't generateBuildId in dev: #86581
• [devtool] unify the bundler field: #86514
• Turbopack: normalize distDir separators: #86697
• Cover org package external in externals-transitive test: #86691

Misc Changes

• Update Rspack development test manifest: #86657
• Update Rspack production test manifest: #86658
• [test] Deflake use-cache-router-handler-only in deploy tests: #86678
• Allow exporting object and array literals in 'use cache' files again: #86655
• Turbopack: use tracing context for config watching: #86576
• Turbopack: align chunk loading error name: #86593
• docs: update prefix two-digit number in routing section: #77758
• [bundle-analyzer] Disable revalidateOnFocus and revalidateOnReconnect: #86688
• Turbopack: improve eventual consistency: #86682
• [test] Enable Playwright traces in deploy tests: #86683
• [test] Deflake app-dir-prevent-304-caching: #86693
• Bump to swc 49: #86689
• Turbopack: process.env.TURBOPACK should be a string: #86680

Credits

Huge thanks to @vercel-release-bot, @eps1lon, @unstubbable, @mischnic, @Marukome0743, @devjiwonchoi, @timneutkens, and @huozhi for helping!