We're back up and running - now on v0.19.2 of Lemmy. This major version bump introduces new features like user-level instance blocking and a new scaled sort algorithm.
The image service back-end upgrade is partially complete. I anticipate another short period of downtime in the next week or two to complete the required changes.
As with any major changes to the back-end, I recommend clearing your site data and logging back in.
I can also see that some changes to the Lemmy UI code may have degraded the Leminal Space theme. I hope to have these issues cleaned up over the next couple of days.