Nagios 3.0b4 has been released to fix a few bugs present in beta 3. There are also some improvements in the cached host check logic that should help with performance. Check out the Changelog and download it now. NDOUtils 1.4b6 has also been released to work with the latest beta of Nagios and contains a bugfix for segfaults that were occurring in the prior release.
Nagios Update: XI 5.6.6
Nagios XI update 5.6.6 is now released! This update resolves a number of minor bugs and one security vulnerability fix. This version also includes improvements