I've found the following data summary very useful in terms of drill-down capability;
http://w3techs.com/technologies/details/ws-apache/2.2/all http://w3techs.com/technologies/details/ws-apache/2.4/all while their breakdown/segmentation tabulations provide some interesting data such as; http://w3techs.com/technologies/breakdown/ws-apache/operating_system The very limited 'free' tabulation remaining from SecuritySpace seems to back up this assessment; http://www.securityspace.com/s_survey/data/201301/servers.html There seems to be a worthwhile discussion about the challenges presented by 2.4 which have adversely affected its adoption, during the ApacheCon Hackathon Mon 2/25 in Portland. I'd like to set aside time about 11am for that discussion for anyone who wants to participate. Once we take away some good information from that roundtable, it would be worthwhile to hold a BoF later in the week especially for end users who are looking at or challenged by adopting 2.4.
