What's new in Apache HTTP Server, version 2.4
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Apache HTTP Server version 2.4 is full of exciting new features. We share a few of them with you.
Apache HTTP Server version 2.4 has been out since February 2012, and the 2.4.4 version will probably be released by the time you read this. Apache 2.4, however, is solid, well tested, and deployed on a number of sites. Although this summary of important new features is not comprehensive, I've tried to highlight the most interesting and important improvements in Apache 2.4.
MPMs Loadable at Run Time
In previous versions of the server, you were stuck with whichever multiprocessing module (MPM) you installed. If you wanted to switch from Prefork to Worker, you had to recompile – or, if installing from a package, you had to reinstall.
With version 2.4, MPMs are now pluggable; that is, you can load them with a LoadModule directive like any other module, allowing you to switch MPMs at will with a simple configuration file change and a server restart.
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