I'm still in the middle of working on a new updating system for DISE to improve things for whenever Steam updates.
I've been developing the database, backend/admin web interface to manage it, from scratch. Integrating it in DISE at the same time as well. I didn't have anything advanced before, nor could I find any existing systems I could use. Thanks for your patience! :)
There are also many things I've never even done before and I'm also spending some time simply deciding how things should work. I've learned so much already just from working on DISE! :D
At least I can try to simply update DISE alpha 53 soon, to make syncing work again. There will be nothing new before the next real release. :)
Update
Please see update #2!
I regret to inform you that something bad happened with the code for DISE alpha 53. I have lost some of it, and it has changes it's not supposed to have. It makes the job harder to simply update DISE alpha 53 if I have to patch something together from both new and old code. :( I have backups but I'm not sure if they are good either. Anyway, I'll keep working hard(er).
Update 2
Alpha 54 (only fixes syncing) was released.