vercel/next.js v15.6.0-canary.10

on GitHub

Core Changes

• Upgrade React from 8a8e9a7e-20250912 to 5e0c951b-20250916: #83850
• Bump typescript 5.9.2: #83833
• Allow headers, rewrites and redirects to be defined as sync functions: #83743
• Turbopack: Optimize addedRoutes and removedRoutes calculation: #83840
• [next-config-ts] Set Node.js native TS loader fallback flag to process.env: #83832

Misc Changes

• Only retry if canary fails on required jobs: #83851
• docs: Fix self-referential link to Middleware in middleware.mdx: #83854
• Update Rspack production test manifest: #83826

Credits

Huge thanks to @eps1lon, @devjiwonchoi, @kachkaev, @timneutkens, @bgw, and @vercel-release-bot for helping!