Apple has officially seeded the fourth developer beta of OS X 10.11.5 for testing purposes.
Apple has seeded the fourth beta of OS X 10.11.5 to developers. This release arrives just under four weeks after Apple seeded the first developer beta to developers. This build is also available for public beta testers as well.
The new beta software can be downloaded from the Apple Developer Center. It is also available as an update through the Mac App Store and the Update tab for machines running the first beta.
As far as what’s new, the beta release appears to be a minor update, with performance enhancements and bug fixes. However, if something new is discovered within the software, we’ll be sure to update this post accordingly.