Updating Native Mac OSX Mavericks Apache 2.2 to 2.4 - disabling old version?
Since there is no answer I found out something:

Best way to get past the problems from my question:


stop the apache server: sudo apachectl stop
Backup/rename these files in the default apache folder: ab, httpd &amp; apachectl

sudo mv /path/to/file/ab /path/to/file/ab.old
Create links in the default apache folder:

sudo ln -s /path/to/originalfile/ab /path/to/where_the_link_should_be_saved/ab
Start apache: 

sudo apachectl start
Check if the changes were taken:

httpd -v

apachectl -v


It should be version 2.4.10 now:)