v15.1.1-canary.27

Core Changes

• Update font data: #74572
• Upgrade React from 3b009b4c-20250102 to 3ce77d55-20250106: #74557
• [metadata] Change the array head to single node in flight data: #74299
• [DevOverlay] Add Toolbar: #74555
• restore deleted comment in next-app-loader: #74597
• Turbopack dev: Remove client to server websocket ping event: #74584

Example Changes

• chore(examples): update React in reproduction templates to stable 19: #74499

Misc Changes

• chore(github): update issue_stale token to release bot token: #74575
• chore(ci): Ensure all 6 shards are used equally in deploy tests: #74574
• fix: force module format for virtual client-proxy file: #74162
• [Turbopack] fix shadow-rs build caching: #74579

Credits

Huge thanks to @samcx, @nnnnoel, @lubieowoce, @huozhi, @sokra, @devjiwonchoi, and @timneutkens for helping!