v16.5.0-canary.50 release notes

Enable turbopackMinifyBeforeChunking by default on canary releases: #101113
Turbopack: write smaller/faster client reference manifests: #101312
Generate managed agent instructions on next dev and respect opt-outs: #101746
fix(next/image): check the LCP element loading state: #101737
Run render error reporting outside the work-unit scope: #101597
Fix RSC navigation and runtime prefetches in next start: #101357
Expose full-route RSC prerender classification to adapters: #101309
Distinguish dynamic rendering from required prerendering: #101511
turbopack: size chunk items by their minified code when minifying before chunking: #101010
Prevent repeated prerenders during fallback shell revalidation: #101756
Enable Turbopack GC by default: #101591
Exit next dev when the server process is killed by a signal: #101752
Store "use cache" durability once per entry in server reference manifest: #101674
Remove durability property from createServerModuleMap results: #101730
Resolve webpack dev HMR test callback when a build has nothing to apply: #101682
turbo-tasks: capture effects on multiple workers: #101514
Turbopack: report routes nested inside catch-all segments instead of panicking in dev: #101697

docs: place shell param-order rule with build-time shells: #101680
turbo-persistence: don't modify the directory on read-only open: #101779
Optimize inline_atom: #101778
docs: clarify standalone .env copying and the next-server tracing exclude key: #101699
docs: Add more clarification about SVG security policies: #101311
Add a 48-hour Cargo dependency cooldown: #101765
Update Rust nightly to 2026-11-13: #101764
Upgrade React from df6aa4ec-20261112 to df6aa4ec-20261112: #101760
turbo-tasks-backend: store task edges in flat EdgeSets: #101489
turbo-tasks-backend: add a profile driver to the keyed dependencies benchmark: #101731
docs: correct deploymentId environment variable precedence: #101740
Turbopack: list compact re-export namespace keys in code unit order: #101494
turbo-tasks-backend: fix transient root test race: #101700
Scaffold separate entrypoint for Turbopack NFT functionality: #94356
Turbopack: read UnusedReferences by key in ESM export code generation: #101626
Require real deployment coverage for application behavior: #101510
Turbopack: read UnusedReferences by key in pattern mapping: #101725
test: replace files atomically in patchFile: #101683
turbo-persistence: faster key block sorting: #100335
turbopack: return small free ranges to the OS after project shutdown: #101623
Turbopack: return freed memory eagerly while shutting down the project: #101589
turbo-persistence: validate sst_inspect block reads with BlockOffsets: #100313