Core Changes

• Revert "Revert "Add a --webpack flag and default --turbopack to true (#84216)"": #84351
• [Breaking] Remove AMP codemod: #84356
• [Breaking] Remove deprecated built-in AMP: #84312
• auto-enable clientParamParsing and clientSegmentCache w/ cacheComponents: #84250
• [mcp] get server action tool: #84382

Example Changes

• examples: Remove AMP example: #84355

Misc Changes

• docs: Remove AMP docs: #84357
• docs: Type helpers don't need to be imported: #84265
• Turbopack: Add docs for debugIds option: #84375
• Remove references to size metrics in next build from our docs: #83823
• Bump to swc v42: #83477
• Turbopack: skip invalidating a task on cell/output change when the dependency is outdated: #84376

Credits

Huge thanks to @devjiwonchoi, @icyJoseph, @timneutkens, @lukesandberg, @mischnic, @ztanner, @sokra, and @huozhi for helping!