Nagios Core 4.0.0beta4 has been released and can be downloaded from the downloads page. Note that the changelog has not been updated, but will be before a full release. To learn more about what has gone into Core 4, you may view the slide deck from Andreas Ericcson’s presentation at last year’s Nagios World Conference, here. Many thanks to Andreas Ericsson and all others who have contributed. We strongly encourage you to provide feedback and report any bugs you may encounter to tracker.nagios.org. The response we get from the community is what makes Nagios the world leader in monitoring!