is not recommended for production systems

I think that this is because the protocol doesn't contain means of routing (similar to "SEEN-BY" fields). But that is solvable with some coding. And current implementation will work in restricted (controlled) tree-like topologies. I think this is negotiable, and there are no too much nodes, so agreements are possible.

The main repository of this project is https://github.com/igniterealtime/Openfire License: Apache-2
Current version is v5.1.0 (2026-06-03)
The feature was implemented since v4.6.0 (2020-10-16)
«[OF-2030] - Add support for XEP-0289: Federated MUC for Constrained Environments»

::: spoiler uninteresting notes about OF-2030 (i don't see that link under OF-2030 - https://issues.igniterealtime.org/browse/OF-2030, and

web.archive org don't saved it
https://download.igniterealtime.org/openfire/docs/4.6.0/changelog.html

«

Loading...

https://issues.igniterealtime.org/browse/OF-2030 |
	    17:30:40 September 20, 2022

Got an HTTP 301 response at crawl time

Redirecting to...

https://igniterealtime.atlassian.net/browse/OF-2030

»

The link https://igniterealtime.atlassian.net/browse/OF-2030
is unavailable at web archive org https://web.archive.org/web/20220922044149/https://igniterealtime.atlassian.net/browse/OF-2030 says:

426 Upgrade Required

« Похоже, на этом сайте есть проблема

https://web.archive.org/web/20220922044149if_/https://igniterealtime.atlassian.net/browse/OF-2030 вернул ошибку.

Код ошибки: 426 Upgrade Required

Проверьте, правильно ли вы ввели адрес веб-сайта.
»

, but available in the internet.

Contain almost no information, except that Guus der Kinderen is the author of implementation

:::