Long list, but minimal changes. The vast majority of changed files are just localization tags.
BG windows got changed a bit. They added some new gamedata for the BGs as well, plus swapping some PVP-centric stats around (removing PVP CB/pot and such, adding lethality stats).
They added a passive effects tab on the persona window for focus effects and the like.
That's pretty much it. No major UI changes this GU.