There's been another recent update to the GEM core library, bringing GEM to version 3.26. There have been reports that the version on Curse's site is defective and causes your UI to not function properly, so download via WoWMatrix, WoWKindness, or the mod author's site.
3.26 adds a number of improvements, including the ability to see people's guilds and whatnot in the Members list without needing to hover over the individual person. That also means you can sort by guild again. The mod seems to work OK, but the dates for events are in French for some reason. Here's a quick list of handy French words:
aujourd'hui - today
demain - tomorrow
Lundi - Monday
Mardi - Tuesday
Mercredi - Wednesday
Jeudi - Thursday
Vendredi - Friday
Samedi - Saturday
Dimanche - Sunday
Or, alternatively, turn off the "Grid" display in the first page of the "Options" tab if you don't want your stuff in French, but the new display is a bit nicer!
I endeavour to keep the copy on the THB GEM page updated with the latest version, but sometimes I get behind. Your GEM will notify you when a new version is available from the official web site (http://www.wowgem.fr/index.php) or you can use a third-party extension manager such as WoWMatrix which will allows you to download and install updates easily for add-ons it supports. Its available for Windows, Macintosh, and Linux.
GEM has been updated to 3.27. I've avoided updating the one here because 3.27 does seem to produce a raft of errors from time to time. However, it does fix the localization problem with dates for events appearing in French for everyone.
I'm hoping there will be a quick update to fix the spewing of errors shortly!