macOS 11.0 will identify itself differently according to the SDK used, and an environment variable does the same for scripts.
version
How does Big Sur convince older software that it’s macOS 10.16, but to newly-built app it’s macOS 11.0?
If you have scripts or code which check which version of macOS is running, be careful with Big Sur. Is it 11.0 or 10.16?
Apps don’t work like the Finder. Most use ‘safe saves’ designed to prevent a failed save losing the original document. Here’s how they work.
When should you use the Move To menu command in any of Apple’s iWork apps? What advantages does it bring over the Finder?
Document versions can be invaluable, being between Undo and your backups. But they’re also easy to lose. Here’s how to keep them.
Time Machine seems to be the only backup system which also backs up the Versioning database on each volume. Is that useful though?
Need to clean documents of metadata, remove versions, and zero their datestamps? Here’s the utility to help, when used wisely.
Using the Up and Down Arrow keys to select a version now works properly. Recommended for all users.
A minor fix for compatibility with Catalina betas, where it now reports the correct size of the version database.
The Eclectic Light Company 