v16.2.0-canary.8

Core Changes

• Improve agents-md prompt to force doc retrieval: #88997
• [Reapply] Add useEffectEvent to disallowed React APIs in Server Components: #88985

Misc Changes

• [Turbopack] Use a presized scratch buffer for task encoding: #88924

Credits

Huge thanks to @gaojude, @lukesandberg, and @dango0812 for helping!