# Upgrade iRedAPD > Release Notes are available here: [iRedAPD Release Notes](./iredapd.releases.html). > If you're trying to upgrade iRedAPD-1.3.x or earlier releases to the latest > iRedAPD, please check this tutorial instead: > [Upgrade iRedAPD from v1.3.x or earlier versions to latest release](./upgrade.old.iredapd.html). > We offer remote upgrade service, check [the price](../support.html) and [contact us](../contact.html). This tutorial describes how to upgrade iRedAPD from `1.4.0` or later releases to the latest stable release. It's applicable on all Linux/BSD distributions supported by iRedMail. * Download the latest stable release here: [http://www.iredmail.org/yum/misc/](http://www.iredmail.org/yum/misc/) For example, iRedAPD-1.6.0.tar.bz2. * Upload it to your iRedMail server. Assume it's `/root/iRedAPD-1.6.0.tar.bz2`. * Extract downloaded package and execute upgrade script: ``` # cd /root # tar xjf iRedAPD-1.6.0.tar.bz2 # cd iRedAPD-1.6.0/tools/ # bash upgrade_iredapd.sh ``` That's all. ---- Important notes: * It's recommended to enable plugin `reject_null_sender` in iRedAPD-1.4.4 or newer releases to prevent authenticated user sending spam as null sender. * Plugin `amavisd_wblist` is required if you manage white/blacklists with iRedAdmin-Pro. # See Also * iRedAPD source code is hosted on [BitBucket](https://bitbucket.org/zhb/iredapd/).