Sometimes you need to access older versions of PrestaShop, for example to check if your clients PrestaShop installation contains custom core modifications. To check if any changes exist between clients version and the original use the software called winmerge. When doing the comparison with WinMerge ensure to enable ‘ignore carriage return differences’ from the options screen.

To download older versions of PrestaShop visit http://code.google.com/p/prestashop/