ArcheAge's second closed beta phase is officially underway! This time around, you can play through 1:00 p.m. EDT on Monday, August 4th. If you played CBE1, you don't need to download the client all over again, but you will need to update your build to 4.3 via the 161 MB patch.
You may also be pleased to note that all of your CBE1 progress will carry over, including your crop timers and taxes. Trion says that CBE2 is expected to be "three times the size of the first."