Group: The GroupDetail block has new setting called "Add Administrate Security to Group Creator". When this is set to "Yes" then whoever created the group will automatically have the security permission to administrate the group added. The default value for this setting is "No". The behavior of Rock prior to v12.1 was to automatically grant the Group creator "Administrate" permission. As of v12.1 this will not happen unless the "Add Administrate Security to Group Creator" block setting is set to "Yes". This release does NOT change the security permissions for any existing Groups.