| Action | Yarn Classic | Yarn Berry (PnP) | npm v10 | |-----------------------|--------------|------------------|---------| | Fresh install (cold) | 38s | 12s | 41s | | Subsequent install | 2.1s | 0.8s | 2.7s | | node_modules size | 410 MB | 0 (virtual) | 395 MB | | CI artifact time | 45s | 15s | 52s |
While the terms are often used interchangeably in casual conversation, there is a technical distinction between and thread : | Action | Yarn Classic | Yarn Berry
Try yarn init -2 in a throwaway project. If PnP doesn’t fight your toolchain, commit to Yarn. Otherwise, Yarn Classic or npm are safe defaults. commit to Yarn. Otherwise