Upgrade
Upgrade are one of the maintenance tasks for system. Programs that are not upgraded for a long time, like buildings that are not maintained for a long time, will accelerate aging and gradually lose functionality until they are unavailable.
For maintenance, focus on the following two UUpgrade jobs:
📄️ System Update
Linux Update
📄️ Application Upgrade
Different application have different upgrade solution, you can refer to each application administrator guide for upgrade.