v4.0.1 is the first regularly scheduled patch release of v4
It will be followed up later this week with v3.18, which will backport a number of the features/fixes from Nuxt v4 to v3.
✅ Upgrading
Our recommendation for upgrading is to run:
npx nuxt upgrade --dedupe
This will deduplicate your lockfile as well, and help ensure that you pull in updates from other dependencies that Nuxt relies on, particularly in the unjs ecosystem.