Warcraft 3 - Frozen Throne Patches?

I recently have started playing Warcraft 3 again, but I have heard that there were official patches that contained add-ons and fixes.
I want to know if the most recent patch V1.24e includes all of the add-ons from the past patches.

Yup it includes all the fixes from previous version.
The patcher will tell you when you patch it.