# Update Guide

# Gradual roll-out

New stable Imunify360 versions are scheduled for the gradual roll-out from our production repository and are available for all customers in about two weeks or less from the release.

If you do not want to wait for the gradual roll-out, you can update Imunify360 to the latest version by running the following commands:

wget -O imunify-force-update.sh https://repo.imunify360.cloudlinux.com/defence360/imunify-force-update.sh
bash imunify-force-update.sh

# Beta

To upgrade Imunify360 on CentOS/CloudLinux/AlmaLinux systems, run the command:

yum update imunify360-firewall --enablerepo=imunify360-testing

To upgrade Imunify360 on Ubuntu 16.04, run the following command:

echo 'deb https://repo.imunify360.cloudlinux.com/imunify360/ubuntu-testing/16.04/ xenial main' > /etc/apt/sources.list.d/imunify360-testing.list
apt-get update
apt-get install --only-upgrade imunify360-firewall

To upgrade Imunify360 on Ubuntu 18.04, run the following command:

echo 'deb https://repo.imunify360.cloudlinux.com/imunify360/ubuntu-testing/18.04/ bionic main' > /etc/apt/sources.list.d/imunify360-testing.list
apt-get update
apt-get install --only-upgrade imunify360-firewall

To upgrade Imunify360 on Ubuntu 20.04, run the following command:

echo 'deb https://repo.imunify360.cloudlinux.com/imunify360/ubuntu-testing/20.04/ focal main' > /etc/apt/sources.list.d/imunify360-testing.list
apt-get update
apt-get install --only-upgrade imunify360-firewall

To upgrade Imunify360 on Ubuntu 22.04, run the following command:

echo 'deb https://repo.imunify360.cloudlinux.com/imunify360/ubuntu-testing/22.04/ jammy main' > /etc/apt/sources.list.d/imunify360-testing.list
apt-get update
apt-get install --only-upgrade imunify360-firewall

To upgrade Imunify360 on Ubuntu 24.04, run the following command:

echo 'deb https://repo.imunify360.cloudlinux.com/imunify360/ubuntu-testing/24.04/ noble main' > /etc/apt/sources.list.d/imunify360-testing.list
apt-get update
apt-get install --only-upgrade imunify360-firewall

To upgrade Imunify360 on Ubuntu 26.04, run the following command:

echo 'deb https://repo.imunify360.cloudlinux.com/imunify360/ubuntu-testing/26.04/ resolute main' > /etc/apt/sources.list.d/imunify360-testing.list
apt-get update
apt-get install --only-upgrade imunify360-firewall

To upgrade Imunify360 on Debian 9 (supported up to Imunify v6.11 (including)), run the following command:

echo 'deb https://repo.imunify360.cloudlinux.com/imunify360/debian-testing/9/ stretch main'  > /etc/apt/sources.list.d/imunify360-testing.list
apt-get update
apt-get install --only-upgrade imunify360-firewall

To upgrade Imunify360 on Debian 10, run the following command:

echo 'deb https://repo.imunify360.cloudlinux.com/imunify360/debian-testing/10/ buster main'  > /etc/apt/sources.list.d/imunify360-testing.list
apt-get update
apt-get install --only-upgrade imunify360-firewall

To upgrade Imunify360 on Debian 11, run the following command:

echo 'deb https://repo.imunify360.cloudlinux.com/imunify360/debian-testing/11/ bullseye main' > /etc/apt/sources.list.d/imunify360-testing.list
apt-get update
apt-get install --only-upgrade imunify360-firewall

To upgrade Imunify360 on Debian 12, run the following command:

echo 'deb https://repo.imunify360.cloudlinux.com/imunify360/debian-testing/12/ bookworm main' > /etc/apt/sources.list.d/imunify360-testing.list
apt-get update
apt-get install --only-upgrade imunify360-firewall

To upgrade Imunify360 on Debian 13, run the following command:

echo 'deb https://repo.imunify360.cloudlinux.com/imunify360/debian-testing/13/ trixie main' > /etc/apt/sources.list.d/imunify360-testing.list
apt-get update
apt-get install --only-upgrade imunify360-firewall

# Production

CentOS/CloudLinux/AlmaLinux systems:

yum update imunify360-firewall

Ubuntu 16.04, 18.04, 20.04, and 22* systems:

apt-get update
apt-get install --only-upgrade imunify360-firewall

Debian 9 (supported up to Imunify v6.11 (including)), 10, and 11 systems:

apt-get update
apt-get install --only-upgrade imunify360-firewall

# Host OS upgrade

When you upgrade the underlying operating system (for example, Ubuntu 22.04 → 24.04) on a server where Imunify360 or ImunifyAV is installed, the APT repository .list files keep pointing at the previous OS version. As a result apt-get update will either return 404 errors or pull packages built for the old OS, and the daily update cron will silently install the wrong packages.

This applies only to Debian/Ubuntu systems. RPM-based systems (CentOS / CloudLinux / AlmaLinux) are unaffected because yum/dnf resolve the OS version dynamically.

To recover after a host OS upgrade, run the deploy script with the --post-os-upgrade flag.

For Imunify360:

bash i360deploy.sh --post-os-upgrade -y

For ImunifyAV:

bash imav-deploy.sh --post-os-upgrade -y

The flag requires deploy script version 2.152 or later. It performs the following steps automatically:

1. Reinstalls imunify-release for the OS currently reported by /etc/os-release, which rewrites the repository .list files to the new OS version.
2. Handles the GPG key .dpkg-dist edge case introduced by Ubuntu 24.04 and later.
3. Re-enables the beta/testing repository if it was active before the upgrade.
4. Runs apt-get update and reinstalls the product package to pick up binaries built for the new OS.
5. Restarts the Imunify service so that the in-memory cache of /etc/os-release is refreshed.