On Thursday, amidst a number of other releases, Apple launched its first beta for the first update of its yet-to-be-released OS X 10.11 El Capitan upgrade. Known as 10.11.1 and with a build number of 15B17c, the beta is for registered developers only and focuses on improving the "stability, compatibility, and security" of the Mac. A "golden master" (final) candidate of OS X 10.11 was issued last week, well ahead of the official September 30 launch date.
