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The TOTP and Duo Universal Prompt plugins are nearing feature completion and are on track to ship alongside this release and work will hopefully get underway this month to prepare the OIDC extension for its final "official" form as a project-delivered code base (as we have warned, there will be changes required for those who have deployed the earlier releases but we will try to minimize them). That work, documentation, and testing are the main blockers to get V4.1 completed, and a 2020 release is not impossible, though probably a bit aggressive.
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