Hi sir, you in real time organization, we will have one or two instances , like dev and production, if upgradation need to done .First in which instances we do upgradation . In dev or Production instances.
Upgrades should first be performed in the development instance. This allows developers and administrators to test the new version, identify any issues, and make necessary adjustments without impacting the live production environment. Customizations and new features can be thoroughly tested in this instance.
