Apple has released OS X 10.11.3. You can download the update through the Software Update mechanism in the Mac App Store. Here’s what you can expect in the update:
- Fixes an issue that may prevent some Mac computers from waking from sleep when connected to certain 4K displays.
- Third-party .pkg file receipts stored in /var/db/receipts are now retained when upgrading from OS X Yosemite.
For detailed information about the security content of this update, see Apple Security Updates.