IPB 3.0 came out yesterday

This is what is written on the offsite:
Invites Power Board 3.0.0 and its Applications have been released.

Here in Russian some kind of functionality
We quickly go over IP.Board 3.0.

But most importantly (as in me):
Be sure to follow the install upgrade instructions. Remember that any skins, modifications, graphics, etc. IPB will not work on IP.Board 3.0. You will not lose any posts or a member of the upgrade.
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In my opinion, incompatibility is very vain. If the question of “updating the forum from 2.x to 3.0” is raised, this will be another serious reason to think, “and not to leave the paid IPB in the direction of something free, while the work is about the same.”