Nuxt
Nuxt’s upgrade guide is where the known-issues surface lives. Deprecations collect under their own heading, and the guide distinguishes between removals scheduled for a minor release and those held for the next major; consulting that section before upgrading is more reliable than waiting for a runtime error to surface the gap.
The sharpest edge in the file’s history is the Nuxt 2 to Nuxt 3 migration, which was a rewrite rather than an incremental bump. The module system, directory conventions, composable patterns, and the underlying server engine all changed; Nuxt Bridge existed as an intermediate layer for teams unable to port at once, and Bridge itself carried its own documented caveats. Nuxt 2 reached end of life in December 2023, so the question for legacy codebases has largely resolved into whether the migration is complete or the project is running unsupported software.