Apple has just sent out an email to notify customers the Messages Beta program will end on December 14th. They encourage any customers who want to continue to use Messages for OS X to upgrade to Mountain Lion via the Mac App Store. Messages allows Mac users to send and receive messages to any other iMessage user on any device. Here’s the email below from Apple:
Apple first let customers download Messages Beta back in February (OS X 10.7.3 was required), and subsequently removed the beta download prior to the release of OS X Mountain Lion in June, where it was officially launched. Anyone still using the beta version of Messages?