Skill changes are now documented in the update notes in Guildwars.com.
http://www.guildwars.com/support/gameupdates/
Some points of note:
Minion master necros have been nerfed. Quite a lot. Verata's Sacrifice now takes 60 seconds to recharge and lasts up to 10 seconds, and you can only have (2 minions + 1 per 2 points in death magic) at a time - a max of 10 at 16 attribute.
Various other skill changes, including buffs to Ele ones.
"In order to travel to Cantha for the first time, a Prophecies character must take the "Mhenlo's Request" quest from Firstwatch Sergio in Lion's Arch. Following the quest steps will unlock ship travel to Cantha for that character."
Henchmen now sometimes chat during a mission. In outposts, players can talk to henchmen by double-clicking on them.
The Party window indicates if a member is out of compass range by dimming that character's name.
etc, etc...