# Upgrade iRedMail from 0.9.3 to 0.9.4

[TOC]

__WARNING: THIS IS STILL A DRAFT DOCUMENT, PLEASE DO NOT APPLY IT.__

## ChangeLog

> We offer remote upgrade service, check [the price](../support.html) and [contact us](../contact.html).

## General (All backends should apply these steps)

### 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:

```
# File: /etc/iredmail-release

0.9.4
```

### Upgrade iRedAPD (Postfix policy server) to the latest 1.7.1

Please follow below tutorial to upgrade iRedAPD to the latest stable release:
[Upgrade iRedAPD to the latest stable release](./upgrade.iredapd.html)

Detailed release notes are available [here](./iredapd.releases.html).

### Upgrade iRedAdmin (open source edition) to the latest stable release

Please follow this tutorial to upgrade iRedAdmin open source edition to the
latest stable release:
[Upgrade iRedAdmin to the latest stable release](./migrate.or.upgrade.iredadmin.html)

### Upgrade Roundcube webmail to the latest stable release

Please follow Roundcube official tutorial to upgrade Roundcube webmail to the
latest stable release immediately: [How to upgrade Roundcube](http://trac.roundcube.net/wiki/Howto_Upgrade)

Note: package `rsync` must be installed on your server before upgrading.