This is very common in the equity trading space. Applications must be up during the trading day (non-fri 8-5) but after that they can be upgraded and restarted

This is very common in the equity trading space. Applications must be up during the trading day (non-fri 8-5) but after that they can be upgraded and restarted easily. Typically there’s strict change management processes that prevent Continuous Delivery and slows the rollout of changes. Often I wish I worked in an industry where I could release during the day.