Following today's release of OS X Mavericks Build 13A958 for members of the company's AppleSeed testing program, Apple has now posted the build for all registered Mac developers, referring to it as the "GM" (Golden Master) version that will be released to the public. Apple is reportedly targeting a late October launch for Mavericks, with the company starting to train AppleCare staff on the upcoming operating system this week. Sources have indicated that training must be comp
