[protomyth]

Well, I suppose JP Morgan probably saw Knight Capital Group's mistake.

I worked at a place that had seasonal "no deploy" policies and had some software that controlled very expensive equipment. It was amazing the number of processes needed to update certain things.

It is a true balancing act. I do wonder if any actual courses exist that talk to business people about software life cycle, what is needed for a live system, and how to judge such things?

[closeparen]

My reading is that Knight had a manual, high-touch release process. It’s hard to imagine enough bureaucracy to make that safe. Companies with proper CI/CD may deploy with what seems like reckless abandon, yet are essentially immune to the particular mistake of accidentally forgetting a server.

[user5994461]

The part of the investment bank that deals in trading system is fully CI/CD. Developers deploy 10 000 times a week (measured during the coronavirus change freeze so probably below usual).

I guess I should be the one writing about software life cycle? Do you have any particular questions in mind? That will give me a starting point for a next blog article.