Core Changes

• Ensure getServerInsertedHTML skips rendering correctly: #85394
• Fix duplicate .next/types include on Windows: #85400
• Exclude next-js condition from middleware, proxy, and instrumentation: #85321
• remove unstable_forceStale prefetch option & restore prefetch={true} functionality: #85411

Misc Changes

• docs: regexp removed from middleware config: #85343
• docs: simplify MCP guide to focus on next-devtools-mcp: #85353
• docs: fix proxy matcher overflow: #85337
• docs: point out diff in serialization types for arguments and return values: #85338
• [test] Update snapshots: #85407
• docs: Fix typo in SEO section of loading.mdx: #85301
• Fix typo in Fast Refresh documentation: #85352
• Fix grammatical errors in updating data documentation: #85067
• [test] Skip devlow benchmarks on PRs: #85408
• [test] Unflake typed-env suite: #85410

Credits

Huge thanks to @denesbeck, @gaojude, @mhart, @icyJoseph, @eps1lon, @jesuistuan, @codr, @InfiniteCodeMonkeys, @gnoff, and @ztanner for helping!