Time Machine in Catalina
- Backups now include three volumes: the read-only System volume, the Data volume, and the Recovery volume.
- Strategies for determining what needs to be backed up now include both FSEvents and snapshot differences for APFS volumes.
backupddoesn’t log the free space available on the backup volume.- Backups made by macOS 10.15 are no longer compatible with 10.14.6 and earlier.
See also: Time Machine and backing up in Catalina.
Previously:
- Catalina No Longer Caches Shared Photos Locally
- Time Machine Beaten by the Clock
- What Time Machine Doesn’t Back Up
