For GOS 5.0 a new patch level is available:
https://www.greenbone.net/en/roadmap-lifecycle/
This patch level includes a great number of improvements and fixes for the Greenbone Security Assistant web interface. In addition, several issues have been fixed in the backend, with a focus on Schedules and Alerts, as well as the Greenbone Operating system, improving the system stability and security.
In total GOS 5.0.8 covers 46 improvements.