Installations running on V16 Update 8 may upgrade to V18 Alpha 4, and also upgrade their Linux Operating System from Debian 9 to Debian 10.

Only Recommended for Testing

This is an alpha version, not suitable for production systems. If you want to use it for testing purposes, ensure you take a full backup of your system and store it in a separate location (not on the host). If you are running 3CX as a VM, take a snapshot. This upgrade is designed for installs made with the 3CX ISO.

Try it Out

Go to the Web Management Console and hit the Upgrade button. The upgrade will take approximately 20 minutes. The PBX will not work during the upgrade.

v18 update in management console

What Debian 10 includes:

  • Latest Linux LTS (Long-Term Support) Kernel versions with much better hardware support.
  • Latest stable versions and security updates for Debian-supported packages and libraries.
  • NFtables, the new built-in software firewall, replaces iptables to combine better and easier syntax with improved support for dual-stack IPv4 and IPv6 configurations.
  • A database upgrade to PostgreSQL version 11, offering increased robustness and performance for your PBX.