Your wiki site is not very user friendly. When a patch comes out, the changelog should be front page for the first few days so we can see what changed. I cant find it anywhere.

http://the-grimoire-of-gaia.wikia.com/wiki/Changelog

If you scroll down a little on the main page it's hanging out with other icons in that content pane.

If you mean front page as in the first post in the forum thread then I cannot.

Editing it is a pain to deal with due to the nature of the forum. I think most modders tend to avoid editing the front page as much as possible.

If not, believe @DoctorWiggles has answered your question 👍.