It is not possible to upgrade a stable XAMPP release by installing over the top with a beta version or any XAMPP version unless it is specifically an upgrade version which will be suitably named.Rantaro wrote:I tried to upgrade XAMPP 1.7.4 (http://sourceforge.net/projects/xampp/files/XAMPP%20Windows/1.7.4/) from 1.7.3, but Apache & MySQL did't work well. Please teach me why. Is this test version?
The XAMPP for Windows 1.7.4 is still in beat 5 state and so is not ready for stable release at this point.
However if you want to install a beta version then download it from here:
...and unpack it to folder other than the one you are using for the XAMPP 1.7.3 stable version, for example C:\xamppbeta for the beta 1.7.4 version instead of C:\xampp for the stable 1.7.3 version.
If you install the beta version then report any issues you may have by filling in the form provided on the above beta link web page, not here in these forums.
Good luck and best wishes.