It was released Oct. 2014, joined Apache Foundation in 2016, became a top level project in 2019.

Check the release notes/ blog post and you'll see the amount of people involved.

In this release, some, but not all features are genuinely new without past dependencies, but I didn't spot major breaking changes.

I'd confidently go ahead, esp. in greenfield.

Might be a bit more muddy to migrate from 2.X to 3 atm.