This is part of the Office 365 Moodle plugin suite for Moodle 3.9, version v20200929_m39
Complete Release Note
NOTE: the release contains major changes in Teams SSO, and require action if Moodle and Teams integration is used. Details are at https://docs.moodle.org/38/en/Office365#3.8.0.4_and_3.9.1_release
NOTE: the release also contains a major change on how Teams owners and members are determined. Two new capabilities are introduced for owners and members respectively. The default setting matches the current situation, with editingteacher role having owner capability, and student role having member capability, but this can be customised.