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This version focuses on improving membership control. It includes the ability to revoke
project members access temporarily (by suspending them), as well as revoking users
(outside of Sentry) via the user.is_active flag.
Additionally, it brings the beginnings of an "invite user" flow, allowing you to
invite users who may or may not already have accounts in the system. We plan to improve
this flow in an upcoming release to allow invitees easy registration within the system
if they don't already have an account.