We've applied for an #nlnet grant, let's see what comes of it. If we get it, it should help us to free up substantially more time to work on the project. Development has not stopped, merely slowed down while most our contributors are busy with personal stuff for a while.
We expect another alpha release near the end of August, with mostly internal changes, and development will pick up again about mid September. We are still somewhat waiting on a lot of server-side API changes and fixes though.