# Nagios XI 5.9.0

Released August 18, 2022. Canonical HTML: https://www.nagios.com/changelog/nagios-xi/5-9-0/

## Security

- Updated NRPE to 4.1.0 for security fixes -SAW

## Updated

- Updated PHP versions supported to include 8.0 and 8.1 -JO
- Updated php.ini config options for new installs to have better defaults -JO

## Added

- Added support for CentOS 9 Stream / RHEL 9 and Ubuntu 22 systems -JO

Generated 2026-11-14T21:39:30+00:00