The April 21 outage was a software update performed by our partner. The software update in that instance was tested, but the nature of the way it was deployed caused the impact. That was done by our vendor. It was tested. It had been deployed in other networks around the world. It was an instance that the particular dynamic of the way it was deployed caused the incident in April 2021.
On July 25th, 2022. See this statement in context.