Apple has distributed a build of its update for Mail in OS X 10.9 Mavericks to developers late Wednesday. This indicates Apple is making progress in readying the fix for general release.
According to people familiar with the forthcoming update, Apple made the Mail Update for Mavericks available to developers outside of the AppleSeed community for further testing, the next step toward a public release.
Apple wants developers to focus on three main issues in the latest build: Gmail compatibility, Smart Mailboxes, and the stability of the app.
A number of issues have reported issues with the Mail app after upgrading to OS X 10.9 Mavericks. Users have posted their concerns on Apple’s Support Communities message boards. One of the largest threads, complaints about Gmail folder behavior, is now at over 20,500 views.
Apple for its part, merely states that this update “improves stability and compatibility with Gmail, and includes fixes for users with custom Gmail settings.”
Apple has not announced when the update will be made available for to the general public.