One of the most dangerous changes a corporation can undertake is the release and deployment of software. This is a lesson that airlines and UK banks appear to have failed to learn: difficulties with upgrades and migrations were still generating problems for consumers. A UK bank was recently fined £48.65m for operational resilience failings.
Delegation to a process is an excellent technique for routine upgrades: regognising prior errors plus QMS reviews are the foundations of progress. Documenting these lessons in procedures guarantees that they are learnt rather than just identified.
Delegation to automation is better still: do the QA on the automation once, then simply check that the automation ran without generating an unacceptable error.
Automated processes, auto-QA and auto-documentation are a departmental manager's best friend when it comes to software release and deployment.