We didn't deploy code to production at the end of last sprint because we had a seriously large epic that took 3 weeks to complete. It involved re-architecting an entire feature so that it can support multiple data types rather than the single type we originally planned for.
We knew this would happen, and we expected it right around the three-year point in development. So here it is, right on time. But despite all the testing and care that we put into the Dev/Test branch, and despite the multiple safeguards we have to prevent stupid code from getting into production, I worry we will not have a boring deployment in two hours.
Ah, well. We can roll back if needed, and I haven't got anything on my schedule tonight.