@james - didn’t know where was best to post this since it is kind of in two places.
Referencing Add a “refresh counter” to the dashboard About screen and your drafted PR Invalidate the PHP opcache when files are upgraded.
Migrating with default setup:
Migrating with new build:
Both tests were on same server managed by Laravel Forge using WP 5.3.2.
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james
2
So it looks like it was the same issue (opcache) and that probably fixes it 
Just to be sure, does the classicpress_version error happen every time you do the migration, and it never happens with the new build?
Thanks for testing again!
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Tested this morning, 3 times with each, got the same results as above 
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