“Audit log” of Push subscription actions will now appear in your Push logs. For example, if you hit the /push/stop API endpoint, you will see the following message appear in your Push log: A stop request was received. This should help determine why Push subscriptions are in their current states.
Resolved a number of Managed Sources issues; you should now find using the Managed Sources API is far more stable and performant than it has been in recent weeks. We are aware of, and working on a number of subsequent improvements to Managed Sources which will further improve the stability and reliability of the service.