# Update & Upgrade
Updates and upgrades are one of the maintenance tasks for sytem. 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.
You should know the differences between the terms Update and Upgrade(Extended reading (opens new window))
- Operating system patching is Update, Ubuntu16.04 to Ubuntu18.04 is Upgrade
- MySQL5.6.25 to MySQL5.6.30 is Update, MySQL5.6 to MySQL5.7 is Upgrade
For Discuz maintenance, focus on the following two Update & Upgrade jobs
- Sytem update(Operating System and Running Environment)
- Discuz upgrade
# System Update
Run an update command to complete the system update:
#For Centos&Redhat yum update -y #For Ubuntu&Debian apt update && apt upgrade -y
This deployment package is preconfigured with a scheduled task for automatic updates. If you want to remove the automatic update, please delete the corresponding Cron
# Discuz Upgrade
Discuz needs to manually upgrade the upgrade package to upgrade, which means that the upgrade is a bit difficult for ordinary users. In addition, the official has not had a formal upgrade tutorial, so we are unable to provide an upgrade plan.