I've only been able to spend a little amount of time with Beta 6 so far but this is what I've seen:
1. Some planets aren't filling the circle in the planetary list completely:
2. I also noticed that the pirates are a lot tougher than the last beta, especially their bases! I had two stacks of 5 tiny ships each. I sent one in and lost them all but took out the laser defenses and the missile defenses along with 12hp. I then immediately sent the next stack in (same turn mind you) and all the defenses were instantly healed! The 12hp were still gone but it just seemed wrong that they could immediately replenish all defenses. Is this a "bug" or your design?