Changes in Time Machine reflect continuing development of this Mac-only feature, backtracking on using FSEvents, and making backups more complete.
Time Machine backups made by Catalina are not compatible with earlier versions of macOS such as Mojave. Here’s how they have changed.
Have you ever felt that Spotlight search misses out some files altogether? Here’s hard evidence that it can.
With APFS, Time Machine underwent major change, to using snapshots to determine what to back up, rather than FSEvents. How well has this worked?
With its 2 TB Fusion Drive well over half full, upgrading my iMac from Sierra to Mojave could so easily have been a nightmare.
Some Macs start running the Mojave upgrade like it’s molasses or treacle: starting an app takes a minute or more, and other function grind to a halt. Here’s why, and what you should do.
A post-mortem analysis on attempts to make my iMac dual-boot between Sierra and High Sierra. Can it be done in safety?
More trials and tribulations with the High Sierra upgrade. Is it possible to make a dual-boot system? And is it wise?
Explains how Time Machine knows what to back up, why it performs deep event scans, and how that system is different from HFS+ journaling.
When Time Machine seems to take a long time preparing the next backup, or gets stuck, here is how to diagnose and deal with it.