Core Changes

• Add mui-core to the default optimizePackageImports list: #55554
• Consolidate experimental React opt-in & add ppr flag: #55560
• Add react-icons to optimizePackageImports: #55572
• Fix useState function initialiser case for optimize_server_react transform: #55551
• Update supported config options for Turbopack: #55556
• Fix react packages are not bundled for metadata routes: #55579
• improve internal error logging: #55582
• fix styled-jsx alias: #55581

Documentation Changes

• chore: Fix heading hierarchy in revalidateTag documentation: #55470
• chore: replace issue triaing actions with nissuer: #55525

Credits

Huge thanks to @romeobravo, @shuding, @ztanner, @balazsorban44, @padmaia, @huozhi, and @sokra for helping!