2.4.7 as in httpd apache site
OR
2.4.9 as in apachelounge site
Any idea?
According to Apache the latest stable release is 2.4.9 (released 2014-03-17). This should always be your first port of call for this sort of information.
I am not entirely sure why you think 2.4.7 is the latest release. The link you provided is the same as mine and doesn't list this version.
apachelounge.com
is because he was looking at theVC9
release files which of course is sort of silly whenVC10
andVC11
offer significant improvements. You should base any decision about what release you should be using based on the content on the main project website. The other website is only about VC compatible releases. Its also trivial to compile it yourself using VC9