The release of Sierra seems to have gone smoothly. Was it really a major release, though? What does it get wrong? What about third party support?
kernel
Detailed listing of the kernel extensions which are blocked automatically by El Capitan’s XProtect system.
For 3 successive releases of El Capitan over a 4 month period, some Macs keep freezing. No operating system should ever collapse like that.
Explaining the basic sequence of log entries for a Mac waking from sleep, and making a Time Machine backup.
How to understand Console’s log entries for a normal shutdown, and a normal startup.
An outline of how apps run, to help you fix their problems, and decide whether more memory would help.
The Eclectic Light Company 