The Signal Server repository hasn’t been updated since April 2020. There are a bunch of links about this here but I found this thread the most interesting.
To me, this is unforgivable behaviour. Signal always positioned themselves as “open source”, and the Server itself is under the best license for server software (AGPLv3 – which raises questions about the legality of this situation).
Signal’s whole approach to open source has constantly been underwhelming to say the least. Their budget-Apple attitude (secrecy, i.e. “we can never engage the community directly”, “we will never merge/accept PRs”, etc) has lead to its logical conclusion here, I guess. I have been somewhat of a “Signal apologist” thus far (I almost always defend them & I think a lot of criticism they get it very unfair) but yeah I’m over Signal now.
Delta Chat does look really cool. Like you said, it’s client (testing on iOS) is nice. It’s a shame their desktop app is Electron though.
I have tried it and it is fast, but I would also like to avoid Electron, I think they are considering to replace Electron in the future
Well, fast on your computer. I have got continued freezes with its desktop version. I hope it changes Electron by something native.
It is great on mobile.