In reply to Alec Kinnear.

I wish WordPress would only do major database/structure breaking updates once/year and not every three months. It’s an extremely rude and unprofessional development schedule. Most of the people running the software want stable websites and security fixes, with annual improvements of functionality.

1) It's every four months. Three per year -- mid April, August, December.

2) WordPress 'Major' version releases are more akin to 'minor' releases on most other projects -- we do our absolute utmost to not break anything on any updates. If you take a theme that was properly built using the right core APIs in WordPress 1.0 or 1.5 or whatever, you should be able to upgrade that site directly to 4.2.2 and everything would still work. So where you're getting the idea that WordPress is shipping breaking updates three times a year, I really don't know.