# Upgrade iRedMail from 1.7.3 to 1.7.4

Attention

Check out the on-premises, lightweight email archiving software developed by iRedMail team: Spider Email Archiver.

Remote Upgrade Assistance

Check out our remote upgrade support if you need assistance.

## ChangeLog

- Jun 3, 2025: initial publish.

## General (All backends should apply these changes)

### Update `/etc/iredmail-release` with new iRedMail version number

iRedMail stores the release version in `/etc/iredmail-release` after installation, it's recommended to update this file after you upgraded iRedMail, so that you can know which version of iRedMail you're running. For example:

    1.7.4

### Upgrade iRedAPD (Postfix policy server) to the latest stable release (5.9.1)

Please follow below tutorial to upgrade iRedAPD to the latest stable release: Upgrade iRedAPD to the latest stable release

### Upgrade mlmmjadmin to the latest stable release (3.4.0)

Please follow below tutorial to upgrade mlmmjadmin to the latest stable release: Upgrade mlmmjadmin to the latest stable release

### Upgrade Roundcube webmail to the latest stable release (1.6.11 or 1.5.10)

CentOS 7: please stick to Roundcube 1.5.2

It's time to leave your comfort zone and upgrade this server to at least CentOS Stream 8 or Rocky Linux 8.

If you're running CentOS 7, please upgrade to Roundcube 1.5.2 instead. Roundcube 1.5.3 requires PHP-7, but CentOS 7 ships PHP-5.4 which is not supported by Roundcube 1.5.3 and later releases, including 1.6.x.

Unfortunately, Roundcube 1.5.2 does NOT contains multiple security fixes which shipped in Roundcube 1.5.6 and 1.6.5.

Ubuntu 18.04: please stick to Roundcube 1.5.9

Ubuntu 18.04 runs old php version which is not supported by Roundcube 1.6.

- Upgrade Roundcube.

### Upgrade netdata to the latest stable release (v2.5.2)

If you have netdata installed, you can upgrade it by following this tutorial: Upgrade netdata.