How to check old versions of skills?

Is there anyway to check the old version of a skill before a update? Ty for answering

The way I do it, I use GuildWiki.
Go to the skill's page. At the top right, click edit skill details. At the top, click the History tab. Then use the compare versions buttons to see the differences between a new and old revision. Most skills that have been updated will have a note about it on the date it was revised.

^ That's an interesting trick. I also use the history feature.

Checkout this thread: Skill Change History