So with the Beta 3 I've noticed 2 bugs, varying in severity depending on your outlook.

Firstly, although now we have techs like 'Truth and Reconciliation' to offset race modifiers in our diplomatic relations, this is rendered utterly redundant by the fact that no game that I've started since the new update has had any race modifiers, positive or negative. Playing as Advent doesn't result in Vasari and TEC disliking me. What's more the research for diplomatic improvements gets counted twice - once where it should be (research bonus) and the second where it definately shouldn't (race relations).

The second problem is, as far as I know, more specific. On the new map 'Whirlwind' the wormholes don't work. At first I thought this was because I hadn't found the other end (confusing why this whould stop me from using it, but not catastrophic) however I found all 4 of them, and still couldn't travel through them, neither could the AIs. I'm not sure if this applies on other maps with wormholes.