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grr50 · 11-12-2019, 10:01 PM

I am currently creating the Calibre database on a Windows 10 machine with the 3.38 version. The database is copied to a Windows XP machine running Calibre 1.48. The database is also used on an other Windows 10 machine using a different Calibre version. Currently, all users can transfer the documents to there respective ereaders that are Sony PRS-T1 or T3 units.

A new ereader has been added, a Kobo Forma unit, and I seem to understand that I should upgrade to version 4.18 to be compatible to the Kobo unit and convert all epub books to the Kepub format.

My question is:
- Will the upgrade to version 4.18 on the maintenance PC change the ability of the other users, with older versions, to use the database?
- Do I need to convert epub books to the kepub format to have the Kobo Forma be able to read the books?

11-12-2019, 10:01 PM	#1
grr50 Junior Member Posts: 5 Karma: 10 Join Date: Nov 2019 Device: Sony TR1, TR3; Kobo Forma	Calibre version compatibility I am currently creating the Calibre database on a Windows 10 machine with the 3.38 version. The database is copied to a Windows XP machine running Calibre 1.48. The database is also used on an other Windows 10 machine using a different Calibre version. Currently, all users can transfer the documents to there respective ereaders that are Sony PRS-T1 or T3 units. A new ereader has been added, a Kobo Forma unit, and I seem to understand that I should upgrade to version 4.18 to be compatible to the Kobo unit and convert all epub books to the Kepub format. My question is: - Will the upgrade to version 4.18 on the maintenance PC change the ability of the other users, with older versions, to use the database? - Do I need to convert epub books to the kepub format to have the Kobo Forma be able to read the books?