CrashPlan Home users take note: Code 42 just told me that the 1TB archive limit only applies to users who manually trigger a migration to the Small Business product.Two of my machines converted fine (though upgrading my main machine required me to prune the size of the backup archive from 1.1TB to under 1TB before conversion, which was a drag).
If your CrashPlan for Home subscription expires after the October 23rd end-of-life date, then your subscription will automatically migrate on October 1st. "The 1TB limit does not apply to users who migrate automatically," sayeth Code 42, with that emphasis.
Maybe this means that migrations before the Oct. 1 date require Code 42 to copy all the data from the CrashPlan for Home data store to the Small Business databases. But on October 1st, they're just going to update all the remaining Home data in-place, to now be Small Business data.