vercel/next.js v15.4.0-canary.55

on GitHub

Core Changes

• misc: remove leftover clientInstrumentationHook type: #79701
• cleanup(turbopack): Embed Global vs Specific channel type in the Rust type system: #79291
• [dev-overlay] Show error overlay on any thrown value in /app: #79658
• [dev-overlay] Move error handlers into dispatcher in /app: #79660
• Verify cache-busting param during segment prefetch: #79563
• update(turbopack): Update the messaging UX for timing writing files to disk: #79469
• [dev-overlay] Move Redbox open/close into dispatcher: #79698

Misc Changes

• Turbopack Build: Fix middleware rewrite test: #79697
• Update flakey empty-project test: #79734
• Update Rspack production test manifest: #79645
• Update Turbopack development test manifest: #79646
• Update Rspack development test manifest: #79644
• perf(turbopack): Remove indent in intermediate string: #79754
• fix(turbopack): Use comments instead of AST nodes for unreachables: #79703

Credits

Huge thanks to @r34son, @Cy-Tek, @eps1lon, @timneutkens, @ijjk, @acdlite, and @kdy1 for helping!