But you cannot, in general, migrate your data backwards. Apple's system apps will upgrade their data stores forward only. This isn't a problem if you are willing to e.g. re-download all of your (Mail.app) mail.

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ValentineC 4 hours ago | parent | next [-]

> But you cannot, in general, migrate your data backwards. Apple's system apps will upgrade their data stores forward only.

One huge reason to use third-party programs where possible. I dislike Apple's tight coupling of utilities as it is.

	▲	valleyer 4 hours ago \| parent [-]
		Yep, that's a great workaround, as long as you have third-party apps you're happy with.

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xoa 3 hours ago | parent | prev | next [-]

Yep, though you can mitigate it a little bit in various ways. For one weird example, I keep my main user Home folder on my NAS and mount it via iSCSI. Mostly that's for data integrity/size/backup purposes, but it does also make it free to snapshot before trying out a system upgrade. If I hate it I can rollback my entire set of user data along with the OS.

Though amongst many other wonderful things lost in the mysts of Mac history I still desperately miss NetBoot/NetInstall and ultra easy clone/boot with something like CCC and TDM. It's so fucking miserable now in comparison to do reinstalls/testing/restores.

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trollbridge 4 hours ago | parent | prev [-]

I generally just “reload” everything.