What was the strategy that you guys put in place for doing this? And why did you pick that? And is it all about some of what Brian was leading into about disruption? What was the strategy?

Right.

Yes, exactly.

As Brian put it, you know, when you're looking to upgrade a system, you want to minimize the disruption and the risk as well.

And how we were able to do that was the application servers, which are the servers running the Kubernetes cluster.

We provisioned new application servers for the new Kubernetes cluster, right? which allowed us to have the new infrastructure stood up well in advance while the old infrastructure was still live in production.

But then we later performed in-place operating system upgrades for the ActiveMQ and reverse proxy servers because those are the servers that... broker the connections to the end users and to the external systems like SAP and Teamcenter.

So talk a little bit about the environments for a minute, Ryan.