No such Downgrading HOWTO exists AFAIK. The standard technique would be as follows: 1) Keep a copy of 19.XX database handy. And note down your Koha instance name with sudo koha-list. NB if you have more than one instance, pls ensure you note down the correct instance name. 2) Format your system and install Koha after setting apt to point either at oldstable (for 19.11) or oldoldstable (for 19.05) . 3) Run koha-create --create-db <instancename> where instancename is your old koha instance name from step #1 4) import the old database into the newly created instance. 5) either run the koha-upgrade-schema script from the terminal OR let the Koha web installer do is magic. If you have successfully completed steps 1 to 5 above, you will be back with your old version of 19.XX. Hope this helps Indranil Das Gupta L2C2 Technologies On Fri, 6 Nov, 2020, 8:39 am Father Vlasie, <fv@spots.school> wrote:
Hello all,
Is there an official guide for downgrading Koha to the previous version?
I am having some serious trouble with my 20.05.05.000 install and I would like to go back to 19. Are there any database changes between these two versions?
Thank you!
FV
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