Apple has released OS X 10.11.2 El Capitan. It’s available at the Software Update section of the Mac App Store. According to Apple, this update:
° Improves Wi-Fi reliability ;
° Improves the reliability of Handoff and AirDrop ;
° Fixes an issue that may cause Bluetooth devices to disconnect ;
° Fixes an issue that prevented Mail from deleting messages in an offline Exchange account;
° Fixes an issue that prevented importing photos from an iPhone to a Mac using a USB cable;
° Improves iCloud Photo Sharing for Live Photos.