For GOS 5.0 and GOS 4.3 new patch levels are available:
https://www.greenbone.net/en/roadmap-lifecycle/
Both releases increase the maximum number of NVTs supported by the openvas-scanner.
We highly recommend all users to upgrade to the latest versions.
In total GOS 5.0.15 covers 1 improvement and GOS 4.3.19 covers 2 improvements.