After three intense months of work from more than a dozen contributors, #deltachat 2.48 releases are rolling. Maybe the most feature-packed releases ever?

- "zero metadata" messaging

- native Audio/Video calls on Android and iOS, as well as UbuntuTouch

- Group and Channel descriptions

- A new background audio player

- Revamped Download-on-Demand

and, last but not least, the long-awaited next-generation of messaging resiliency through "multi-path" routing ....

https://delta.chat/en/2026-03-31-zero

Delta Chat: Zero metadata, group descriptions, native audio/video calls and much more!

With the latest 2.48+ releases, a chat message reveals close to zero metadata to servers. For cryptographers and messenger enthusiasts, here are the key points on how we turned email very close to ...

@delta a job well done, I was waiting for the support for audio and video calls, thank you very much to the developers.

@Onlykievv @delta Audio / video calls on android are lovely! In call UI is awesome, ability to toggle both camera and microphone is working. There is even ability to switch audio outputs (speaker / ear piece).

An improvement to the future would be even more integrated incoming call notification experience. It would be nice to reuse android system support for this part too, so we can mute the ringer sound by pressing volume button and accept the incoming call by using the headset button.

I mean both convenience and accessibility when describing this.

Currently accepting the call can be done either by tapping the buttons in the notification area or tapping incoming call entry in the incoming message list. That includes multiple steps. Showing incoming call popup similar to how other apps are doing it would be more accessible.

Please don't take this as a complaining. I like these advancements very much. This is how I am envisioning it to work for the future.