Core Changes

• Remove clientParamParsing requirement from RDC for Navigations: #83661
• Upgrade React from 6b70072c-20250909 to 886b3d36-20250910: #83650
• Turbopack: Use readFileSync / writeFileSync for manifest writing: #83694
• Upgrade React from 886b3d36-20250910 to f3a80361-20250911: #83696
• Don't create client-side debug channel if the feature is disabled: #83699

Misc Changes

• [CI] Fix GitHub Actions matrix configuration for React versions: #83677
• fix(Turbopack): Enable scope hoisting for large files or module counts: #83399
• [turbopack] Lazily construct resolved::Requests for EsmAssetReference: #83662
• Update content-security-policy.mdx, fix development environment error: #83665

Credits

Huge thanks to @unstubbable, @wyattjoh, @Cy-Tek, @timneutkens, @lukesandberg, and @OoMNoO for helping!