Currently they all look like old bugs, some going right back to Mavericks and earlier.
Energy Saver
Sierra 10.12.4 has had a lot of significant bugs fixed, at last. Here’s a list of those known to remain.
This update changes the file used to store the settings from Energy Saver. Careful if you have unusual settings or a UPS.
A command line tool with extensive abilities. It is not actually that hard to use.
Despite being set to stay awake, the other morning my iMac had decided to go to sleep. Why? Is there a ghost in the machine?
When it rains, it always pours catfish. And most of the falling fish came courtesy of the App Store.
A rolling list of bugs which remain in Sierra 10.12.1, including those in Finder and Console.
This list will be maintained throughout this initial release of macOS Sierra. There are still some golden oldies to enjoy.
With only one bug definitely fixed in 10.11.6, out of those recorded for 10.11.5, this update looks rushed. But the jury’s still out regarding freezing.
Do your settings in the Energy Saver pane differ from what actually happens? Learn how to use pmset to understand why, and diagnose old battery problems.
The Eclectic Light Company 