Apple has just seeded the first beta of the next version(s) of its Safari browser for OS X. The new versions, 7.0.3 and 6.1.3, will be available for Mavericks and Mountain Lion users, respectively.

Earlier today Apple also released a new OS X 10.9.3 developer preview along with a beta version of iTunes 11.1.6 to employees. Based on the rapid release of these app betas and the decreasing time between OS X betas, the OS X update is expected to be available to developers later this week.

The new Safari beta includes the following release note:

Please focus testing on the following areas:
• General website compatibility
• Safari Push Notifications
• Login AutoFill
• Credit Card AutoFill (OS X Mavericks only)
• Extension Compatibility