Doesn't look like anything major.
5.00.8144.00 (General Release) (5/13/13)
http://tunerpro.net/downloadApp.htm
The installer now registers the TPK (registration) file type with Windows. When you receive your key, you need only double-click it to register, now.
Added the ability to the difference tool to copy bin data from right to left or left to right
Fixed issue where associated commands for items imported from an ADS weren't set
Fixed issue where default ADX parameters weren't respected when new ADX Value is created