Right, so you roll out your upgrade in the morning . . . on a Wednesday.
You don’t roll your upgrades out on say, Friday after close of trade and then run your regression test set against the upgrade, or a simulated trading day against the upgrade.
Why would you do that - every other business in the US with any sort of IT competence would do that.
That’s why their explanation is BS. The NYSE has some of the best IT folks in the business. They didn’t roll an upgrade out in the AM on a trading day. They wouldn’t do that.
They would sandbox it in the middle of the week, run the regression sets and the trading simulator at it, and then you deploy it Friday at 10PM after the after hour trades are in.
Smells like caca, their explanation. Especially with all their redundancy and fail over.
We all know there’s what you’re supposed to do and what actually happens. They probably intended to do it over the holiday weekend but stuff happened. And some middle manager pinhead was probably having a heart attack because they let the support contract on the legacy so they had to do it NOW NOW.
Every other business would PLAN to do it the right way, but most of them wouldn’t pull it off.
Sounds like standard operating procedure to me.