more on compatibility and troubleshooting; forced iCloud sync (USB sync/SyncServices elimination) and alternatives; networking issues (including older AirPort support); iWork/iLife issues and reviews; installation issues and tips (including Apple ID requirement, bootable installers); GateKeeper ("unidentified developer") issues; virtualization; memory management; Mail issues; Activity Monitor and Network Utility; Safari 7; Finder changes; Java; and more.
