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»
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
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.