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thanks a lot both,
and sorry if I'm still asking, but I tried by myself searching over the files and the internet but haven't understood.
could you pls be more specific ?
I have 10 libraries with their respective metadata.db file in different root folders.
I created them with Calibre 7.2.1.
Now I'd like to update to calibre 8.2.1
I checked and I haven't found in the metadata.db files any reference to version 7.2.1.
Is the DB structure always the same in each calibre version ?
Meaning that if I update the client the structure would be fully compatible ?
or the first time I'll start the new version of the application and open the 7.2.1 metadata.db it will recognize the old version (somehow I haven't found) and update its structure to 8.2.1 ?
Thanks,
Bye,
Alex
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