Enrico has posted an update regarding the first AA balance pass:

• We increased the capacity of the Burster ammo box from 50 to 100
• We increased the velocity of the Burster projectile (There was some talks that the Burster was having difficulty reaching the ceiling or that the projectiles were being forgotten by the client. We verified that this scenario was false and the point of contention was the speed of the projectile. It took quite some time to hit the ceiling in it's current state therefore the speed was increased to compensate for this downfall)
• We decreased the refire time of the burster while unlocked
• We increased the initial velocity of the Sparrow projectile
• We reduced the lifespan of the Sparrow projectile to keep their range the same (because the velocity change increased their range which was not needed as it can already reach the ceiling)

The in game PSA advertisements have also been disabled. For more information check the official forum thread here.

Update: Additional Changes

• The first time help icon has been replaced to a glowing exclamation point to coincide with the recent art changes.
• Changed the Switchblade cert prerequisite to ATV
• Players can create characters from all three empires now (Limits on switching back and forth still exist)
• /appeal is being changed to pop up an external help browser to get assistance. You can choose to close it before launching the browser or proceed
• More signs have been added to the sanctuary
• Training Missions have been further revised
• Tactical overlay settings are now saved
• Edited vehicle first use help
• Made Platoon chat color to a bright orange by default
• Removed LFS toggle from chat window (Where it is located on the status window makes it obsolete)
• ...and numerous other tweaks to UI, first time help, navigation and keymappings... Full list will be provided very soon