OwnCloud
So, OwnCloud is "unsupportable". What's that about? I know a few corporate users who will be worried.
Debian hasn't released a new version of Jessie, but its Version 8.8 that landed over the weekend repairs more than 100 package bugs. As the announcement notes: “Those who frequently install updates from security.debian.org won't have to update many packages and most updates from security.debian.org are included in this update …
At a guess, whoever was packaging it has moved over to NextCloud along with many of the developers.
ISTR that (pretty much) develpment has ceased at OwnCloud and it's largely a dead product. NextCloud has (as you said) taken over as a fork and the majority of devs and package developers have gone over to NC.
I believe it was somewhat of a foot->shotgun interface moment.
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