New to CI, how to extend Libraries and helpers?

[eluser]CroNiX[/eluser]
There is no definitive answer to #1. They update things as they fix bugs and add features. Take a look at the changelog to get an idea of how frequently that is. But why would you miss out on updates? You're not modifying core files. When you upgrade, you check the changelog to see if anything affects whatever you've extended and if it does, check it out and test, etc. This is normal.

Yes, you can report bugs to the GitHub repo and check out the "issues". Please search to see if it's already been fixed or reported before creating a new report. They've done a lot of work in the last 2+ years that CI 3 has been worked on getting ready for the next release, so the chances are high that it's been reported and/or fixed.

You can also check out the new unreleased version (currently, ver 3) there.