Update: We are receiving reports that FaceTime Audio has been enabled in the OS X 10.9.2 Messages app. Further information will be provided as it comes in.
Hot on the heels of Apple's OS X 10.9.1 release earlier this week, the company has issued the first beta build of a subsequent 10.9.2 update to developers for testing. The build number has been designated 13C32.
According to reader Gregg, Apple is asking developers to focus on Mail, Messages, virtual private network features, graphics drivers and VoiceOver.
Mail appears to be a continuing issue for Mavericks, as a large part of 10.9.1 update was dedicated to fixing issues with the app. Specifically, users were -- and still are -- having trouble with Gmail and Smart Mailboxes. Graphics and VoiceOver were also updated with 10.9.1, though Messages and VPN look to be new areas of focus.
Developers can download the OS X 10.9.2 beta via Software Update or Apple's developer portal.