I have an older MacBook Air maxed out at MacOS 10.15.7, Catalina, and I have purchased a new 15" MacBook Air. Is Time Machine a current back up application or has it been replaced by more recent MacOS versions?
When you migrate your data to the new Mac, you can run Migration Assistant against a current Time Machine backup, or bootable clone backup, of your old Mac. This may be more reliable than migrating over Wi-Fi.
Use Time Machine and Carbon Copy Cloner (or Super Duper) for the backups if you want to use a belt and suspenders. Personally I use CCC for two rotated backup SSDs.
Migration Assistant can restore from all those backups. Personally I restore manually only the stuff I really need but that requires a disciplined folder structure so I know where the important stuff is, not forgetting some items like Mail and some custom preferences in the hidden ~/Library folder, and keeping track of 3rd party app license codes.
Yes, it is the current one.
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Is Time Machine the current Backup Application?
