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.
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.