The latest version.
Atlassian do a lot of testing to try to prevent shipping anything with "major bugs". We can argue about design flaws, but it's very rare that an "major" bug goes out in a release. It's quite sad that you feel you need to ask - it tells me you've got used to using software that is badly tested and/or rushed out when it shouldn't be - there's no excuse for that nowadays.
Anyway, you should look at the current latest version, test it, and go with it if it works for you.
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
We're bringing product updates and pro tips on teamwork to ten cities around the world.Save your spot