We have that now. We did not for the formative years of the field.
1. Develop a system where you can turn codepaths on and off with a toggle.
2. Become better at architecture. Learning to split a task into smaller chunks that are easier to reason about, both overall and individually.
3. Learn to do multi phase increment.
4. Develop an automatic deploy/rollback system.
All are good practices, and essential if you need HA. It also gets the velocity into your daily work, so if you need to deploy extra logging, a bugfix ect, you can do it in minuts and not hours/days/weeks.