It is very hard to wait for the release of version 4.

Even though CI4 isn't ready, it is very close. It would be valuable for anyone waiting for the production version to start using a beta release in a development environment. Doing so will help you learn the new framework. You might also find some weak spots that the developers can fix. There should not be any breaking changes from the current development branch to the eventual production release.

Started a major upgrade of a large CI2 application my company inherited to CI4, so far loving the new framework and haven't hit any bugs beyond my own lack of knowledge of CI4. Will probably be planning of putting this into production in around 6 weeks, is it likely to be officially released by then?