Just over two weeks after posting OS X El Capitan 10.11.4 for public consumption, Apple this morning seeded the first beta of OS X El Capitan 10.11.5 to its registered developers. A fifth major update to the the most recent operating system powering the Mac, OS X 10.11.5 includes bug fixes, performance improvements and general security and stability fixes.
It is not expected to bring any major user-facing features. The new beta carries a build number of 15F18b and can be installed on computers running a prior OS X beta through the Mac App Store’s Updates tab.
It’s also available as a standalone download via Apple’s Dev Center.
We’ll update this article with any changes in OS X 10.11.5 as we encounter them.