The update adds El Capitan-centric features including a new mute audio feature for Safari tabs and additional viewing options for Safari Reader. Pinned Sites, a major Safari addition in OS X El Capitan, is not included.
This update:Many OS X Yosemite users will be upgrading to OS X El Capitan in the next few hours, following its official public release. It is not clear when Apple plans to debut the software, but the company has promised that it's coming on September 30.
- Adds controls to mute audio in Safari tabs
- Adds additional viewing options for Safari Reader
- Improves website AutoFill compatibility