Describe how to toggle the feature on and off. Include information on if this can be done at runtime or requires a restart.
Do users’ sources still work? Do users need notification? Is there a script that must be run to clean up whatever mess is left behind from having the feature enabled and then disabled? Is a script required to reset configuration settings?
Is different rollback information required during release and after release? Is downtime required (hopefully not)? Do components or services need to be restarted?