|01-22-2011, 03:35 AM||#1|
Join Date: Sep 2010
Device: Kobo aura HD, Kobo Arc, Sony T2, Kindle Fire HDX 8.9 , Kindle for PC
new heuristics - how are conversion choices saved
new features look good.
however I have a geeky question about how they are saved.
I backup my entire calibre library regularly - if I were ( stupidly) to access the backup library with an older version of calibre, will it have any trouble reading structure detect / heuristc saved individual conversion records, as it will be looking for old-style & finding new style.
actually a more realistic scenario would be if I hit a but in 7.42 & had to roll back to 7.40 for a while - would it cope new option setting saved data ?
|01-22-2011, 09:40 AM||#2|
Sigil & calibre developer
Join Date: Jan 2009
Location: Florida, USA
Device: Nook STR
They would be ignored since they don't exist. Be careful with rolling back though. Going back a version or two usually isn't a problem but the metadata db from time to time gets an update and using a newer version of the metadata db with an older version of calibre is not supported.
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