v16.4.0-canary.21

Misc Changes

• Bump to swc v78: #98268
• Create next.config.ts when generating apps with pnpm new-test: #98364
• test(evals): accept LayoutProps in App Router migration: #98365
• [test] Run deploy tests against local JavaScript changes by default: #98353
• [test] Resolve workspace:* packages to the version under test: #98330
• turbo-tasks: explicit GC root anchoring + cross-session orphan reclamation: #96857
• [PPF] Fix missing runtime-follow up if hints are stale: #98278
• Instant validation for caches excluded from prerenders: #98342
• [PPF] Model caches with stale < MIN_SHELL_STALE as prefetch-only data: #98339
• docs: document excluding content from a prefetch in the prefetching g…: #98175
• docs: add unstable_navigation and unstable_prefetch API references: #98122
• Fix turbopacks webpack loader setup to support options being optional: #98270
• [ci] Align build-and-deploy triggers with build-and-test: #98331
• test: stabilize server action HMR update: #98322

Credits

Huge thanks to @mischnic, @lubieowoce, @aurorascharff, @unstubbable, @eps1lon, @lukesandberg, @icyJoseph, @jimmyhmiller, and @sokra for helping!