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...Apple recommends installing this update on both computers involved in the migration.

Not too helpful if you're upgrading from an older machine running Tiger, is it?

<re-reads post>

The update weighs in at 40.3 MB and requires OS X 10.4.11 or 10.5.5.

<smacks self>

Okay, that's is great news. Looks like backward compatability is live and well, as far as software is concerned!
 
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