A healthy release is uneventful. Someone merges, the pipeline runs, the change is live, and nobody clears their afternoon for it. Teams that dread releases usually have all the right tools installed and none of them wired together.
Environments defined as code
If staging and production differ in ways nobody can enumerate, then testing in staging proves very little. Define both from the same code so they differ only by configuration, and creating a third environment becomes a command rather than a project.
Put the checks in the pipeline, not in the culture
Every team agrees that tests should pass and reviews should happen. Under deadline pressure, agreement is not a control. Gates in the pipeline are - they apply equally on a calm Tuesday and on the evening before a launch, which is precisely when they matter.
Alert on symptoms, not on everything
A dashboard nobody opens is not monitoring. Alert on the conditions that mean a user is having a bad time - error rate, latency, queue depth, failed jobs - and route them somewhere a human will actually see. An alert that fires constantly gets muted, and a muted alert is worse than none because it looks like coverage.
Rehearse the recovery
Rollback and restore are procedures, and untested procedures fail when used. Practise them on a schedule, in daylight, when nothing is on fire. The first time you exercise a rollback should not be during the incident it was written for.
None of this makes releases faster in the first month. It makes them unremarkable by the third, which is the actual goal - engineering time spent on the product rather than on getting the product out of the door.