next 15.4.0-canary.121

v15.4.0-canary.121

on Node.js Yarn

Core Changes

• Upgrade React from a7a11657-20250708 to 60b5271a-20250709: #81463

Misc Changes

• Turbopack: fix duplicate externals modules: #81306
• Turbopack: fix unused export removal with mixed reexport and locals: #81422
• Turbopack: handle all side effects and improve pattern: #81455

Credits

Huge thanks to @mischnic and @sokra for helping!