2.1.9 codename: morningstar. This is the second of the "Stabilising" releases, leading upto RC1. 
A few new features are in.. voice in rooms mode, upstream lists, animated skins, bug fixes, 
WGN player listing improvements, messenger mode online status improvements etc.

UPDATE: There have been reports of an error 62 when launching xlink after updating from an older client version. 
The fix for this is to delete the "settings.dat" file in your xlink directory.