The extension in charge of adding support for OpenID Connect (both on client and provider side) has been released in version 2.4.0.
It's a major update:
- everything related to logout has been rewritten and proper support for RP initiated and backchannel logout has been added (what used to be called "backchannel logout" was actually a total misinterpretation of the specifications)
- client registration was also implemented (mainly to help with backchannel logout)
- a lot of changes behind the hood to support discovery (you won't need to list all those endpoints anymore)
See https://extensions.xwiki.org/xwiki/bin/view/Extension/OpenID+Connect/#H2.4.0 for a more detailed changelog.