APFS changes in Big Sur: how Time Machine backs up to APFS
If I read the article correctly, Time Machine&#x27;s switching to something similar to overlay FS, but nested? I really hope they get it right: backup is where my tolerance for bugs is really low.<p>APFS already supports volume snapshots but not (I think) snapshot send &#x2F; receive, à la zfs &amp; btrfs. I thought that would be the logical next step. If Apple do add this or similar feature, would Time Machine have to switch its backing store yet again?<p>I&#x27;ve been generally happy with Time Machine&#x27;s stability, but this is getting me a little worried. I guess now&#x27;s a good time to looking into Arq (or similar) to replace my janky secondary backup scripts...