Link: https://blog.zulip.com/2026/04/27/zulip-12-0-released/

Quoted

We’re excited to announce the release of Zulip Server 12.0, containing hundreds of new features and bug fixes: end-to-end encryption for mobile push notifications, a major upgrade for Docker, configurable image previews, and much more! Almost 5,500 new commits have been merged across the project since the 11.0 release in August 2025.

Zulip is an organized team chat application ideal for both live and asynchronous communication. With Zulip, you own your data: it’s 100% open-source software, with easy migration between cloud hosting and self-hosting, plus a powerful API.

I wish Zulip was fully E2EE

It doesn't make any sense for large group chats: there's just no secrecy to them. And that will cut you off from desired capabilities like server-side search. Not that I think that Zulip makes any sense in general when there are federated protocols that work and scale as well, but that's another discussion.

I don't see how E2EE would be that important for Zulip. It is mostly used in Teams who work together on a project or for a specific business/company. They all know each other (or at least part of the Teams) and share the information. And it is (typically) run on dedicated hardware owned by the Team.

So i personally see no benefit for E2EE in these kind of contexts.

Zulip now encrypts your push notifications end to end from the Zulip server to your mobile device.

AAHAHA they really don't understand what end to end means, huh?

It's still E2E, but the sender is Zulip and the potentially hostile service provider is google/apple. E2E isn't limited to person to person chats

It would be nice if Zulip chats were E2E, but I imagine that would be a large undertaking

I didn't know TLS was e2e now. \ss