AntiX version lifecycle

Hi all,

I was looking for a good distro to run on my 14 year old Dell Dimension, since almost everyone else has dropped 32 bit support or struggled with my Wi-Fi card. antiX was a natural fit, and runs beautifully.

I'm having trouble finding this - when do individual versions of antiX hit end of lifetime? How quickly do I have to upgrade from one version to the next?

Thanks, and Happy New Year!