Hello Jaroslaw
I did some research and found the following: there really isn't an electrical or functional difference, if that's what you were worried about. Rather, the change is due to a business decision. Based on the information I found, these products were developed at different locations, so these decisions could be made through contracts.
I hope this information has helped you, please let me know if you need help with anything else.
Have a great day and best of luck.