Has Xcode been warning you that your Interface Builder window class is unknown, and creating a generic Window instead? Here’s the simple fix.
bug
Changes include frequent timechecks by timed, harder access to info about keychains, a couple of possible AppleScript bugs, and APFS snapshots.
Rising to the challenge of the unified log: how to work around lack of information, and a surfeit of information. More function and power.
When Sierra’s automatic backups stop or become irregular, other functions fail too. Here are some important and more obvious ones. Is this fixed in High Sierra, and does it affect iPhones too?
The Eclectic Light Company 