Core Changes

• chore: upgrade rspack 1.6.0: #84210
• [mcp] get_routes mcp tool: #85773
• Split each path param into a separate cache key : #85758
• [turbopack] change server source maps in production to use relative paths: #85576
• fix: skip collecting metadata for app-error in webpack: #85892

Misc Changes

• chore: Update patricia_tree dependency, remove manual serde impls: #85785
• docs: keywords in system reqs and add browserslist: #85838
• Honour NEXT_TEST_PREFER_OFFLINE in install-native.mjs: #85850
• Turbopack: chore: Update anyhow, remove old backtrace feature: #85844
• Turbopack: Remove some dead (or useless) code from next-core/src/next_client_reference/visit_client_reference.rs: #85843
• sort dependencies for smaller diffs: #82291
• Update Rspack development test manifest: #85846
• Turbopack: Remove non_operation_vc_strongly_consistent feature usage from next-api: #85874
• Turbopack: remove the streaming hack for improved stability: #85858
• test: Port clean-distdir integration test to the modern e2e test framework: #85828

Credits

Huge thanks to @SyMind, @bgw, @icyJoseph, @unstubbable, @hamirmahal, @huozhi, @vercel-release-bot, @acdlite, @lukesandberg, and @sokra for helping!