## Upgrade on CentOS Upgrade on CentOS — How to upgrade milter manager on CentOS |

## About this document

This document describes how to upgrade milter manager on CentOS. See Install to CentOS for newly install information.

## Upgrade

We just upgrade milter manager package.

    % sudo yum update -y milter-manager

### Upgrade from before 2.1.0

We have provided packages on packagecloud since 2.1.0. So we need to update repository information. We can remove milter-manager-release package.

    % sudo yum remove milter-manager-release

## Conclusion

milter manager can be upgraded easily. It means that milter manager is a low maintenance cost software.

If we want to use improvements in a new version, please upgrade your milter manager.

If we've also installed optional packages, we will go to Upgrade on CentOS (optional) .