howto update xampp best option?

[l4aspider]

Hello,

I wanna ask what will be the best option for updating the old version of xampp (1.4.15) to the a new release

For what i read on the xampp website there is version 1.5.1 availeble now, i used installers before but at the moment i am asking myself do i still need to run a installer file over the allready existing older version 1.4.15 so it will be updated to the new 1.5.1 release?

Or when i am doing that will all websites, config files and modified files be damaged so they cannot be used anymore?

What will be the best and easiest way to update to the latest version so i am not missing or losing any mysl info or any websites?

Regards,
Dennis