in fact, to my surprise, I&#x27;ve just tested our app (v0.10.x in production) on v4.0.0 and all our unit tests pass, the server works...<p>I&#x27;m amazed. A single module had to be bumped (Elasticsearch@8) while we directly rely on 50+ third party modules... Our npm-shrinkwrap is 2600 lines long.<p>That&#x27;s not really a sign of instability to me, but rather great work