# Upgrade iRedAPD

Attention

- Release Notes are available here: iRedAPD Release Notes.

Warning

- iRedAPD-4.0 and later releases require Python 3.5+, only listed distribution releases are qualified to upgrade:

  - CentOS 7 and later
  - Debian 9 and later
  - Ubuntu 18.04 and later
  - FreeBSD with latest ports tree
  - OpenBSD 6.6 and later

If you're running an old Linux/BSD release which doesn't have Python 3.5+, please stay with iRedAPD-3.6, it's the last release supports Python 2. if you need to upgrade to iRedAPD-3.6, please follow this upgrade tutorial instead: Upgrade iRedAPD from v1.4.0 or later releases to v3.6.

This tutorial describes how to upgrade iRedAPD to the latest stable release on listed distribution releases listed above.

Run commands below on your iRedMail server:

    cd /root
    wget -O iRedAPD-6.1.tar.gz https://github.com/iredmail/iRedAPD/archive/6.1.tar.gz
    tar zxf iRedAPD-6.1.tar.gz
    cd iRedAPD-6.1/tools/
    bash upgrade_iredapd.sh

That's all.

## See Also

- Manage iRedAPD (white/blacklists, greylisting, throttling and more)
- Enable SRS (Sender Rewriting Scheme) support