Core Changes

• Add deprecated JSDoc comments for the previous middleware signature: #35448
• fix the dynamic routing of middleware: #32601
• fix: don't override user-agent in fetch if specified: #35547

Misc Changes

• Fix next info test during stable release: #35668
• Update default test timeouts for yarn install times: #35669
• test(integration): emit console error when test fails: #35507

Credits

Huge thanks to @lfades, @nkzawa, @kwonoj, and @SethFalco for helping!