Apple has informed the users in its AppleSeed consumer beta testing group that they will be automatically enrolled in the upcoming testing for OS X 10.9.4. The notice came in an email following yesterday's release of OS X 10.9.3. The notice appears to be going out to users in the invite-only AppleSeed program, rather than the public Beta Seed initiative launched a few weeks ago.
OS X 10.9.3 released yesterday with better 4k display support, contact and calendar sync over USB, and better VPN reliability. We don't know what 10.9.4 will focus on, but Apple is said to have already seeded an alpha of the update to a number of employees.
What improvements would you like to see in OS X 10.9.4? Sound off below in the comments.