The folks at Stargate Worlds have posted a portion of resent patch notes for the SGW beta, updating fans on which classes, worlds and more have been implemented in the game.
Characters:
* Players can now play as members of the SGU faction! Both Commandos and Soldiers, both male and female are playable within the SGU faction at this time
* Commando and Soldier abilities for both factions have been filled out. Abilities for these two classes are almost complete
* Consumable Vendors on Harset (Praxis) and Omega Site City (SGU) now sell dyes and tints which will allow players to color their armor
o Dyes and tints can be traded to other players
o At this time, only ballistic armor can be dyed
Worlds:
* The following worlds have been opened for Closed Beta
o Stargate Command (SGU faction newbie instance)
o Beta Site
o Omega Site City
o Men’fa
o Iphet Crater for SGU faction
Read more here.