[Solved] Workaround for upgrading over multiple Versions of MiaB to the latest when multiple major Versions of Nexcloud are included (first accured in upgrade from v0.30/v0.40 (NC13) to v0.42b (NC15) with v0.41 (NC14) between ) ! UPDATED! cose of backup

Check this comparision call: Comparing v0.30...v0.40 · mail-in-a-box/mailinabox · GitHub

Check this comparision call: Comparing v0.40...v0.42b · mail-in-a-box/mailinabox · GitHub

BTW reading the changelog evolution may help you to know when each Nextcloud version were officialy added.