Quote:
Originally Posted by JimmXinu
I bumped into some backward-compatibility weirdness when I ran an older Calibre(4.17 32bit) to check that attached epub really used to work.
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From the first post of this thread:
Quote:
Originally Posted by kovidgoyal
the database structure has changed. You can run both calibre 4.20 and the betas on the same libraries, however, earlier releases may or may not work, so only run the betas if your main calibre is up-to-date at version 4.20 or newer.
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