What does this mean?

[محروم.كوم]

Hello, everyone!

Quote:
There are currently ------ template(s) that need to be updated or reverted. Some sections of vBulletin may not function if you do not do this!


If I revert these templates, does that mean I will lose all the edits I have made? Like, will reverting templates overwrite the current code with the dafult non-modified code? or It will update the code and still maintain the functionality I want?

Thanks =] __DEFINE_LIKE_SHARE__