Changes aren't free. They're low cost, but not free. Changes are also risky, any change can cause an outage. Many places require code review for every change, so it's not just your time you're choosing to spend. I apply two rules and a judgement call. I make a change when: It moves us towards a new customer feature. It fixes a customer-relevant bug, including security problems. It will improve our long term delivery rate enough to pay off the investment. These only work if the team has “wor...
