The latest OS X beta, 10.9.3, may see a public release within the next few days, as AppleCare employees have received a fresh build of the beta



From MacRumors:

The last build seeded to developers was 13D55, but as noted by 9to5Mac, employees have been given build 13D62, which suggests the beta is nearing the end states of testing.The OS X Mavericks 10.9.3 Update is recommended for all Mavericks users. It improves the stability, compatibility, and security of your Mac.

  OS X 10.9.3 Public Launch Imminent