Stalker 2.3

I have been using the 2.1 version of the Stalker for a long time now. I needed a few more and ordered a few more Stalkers. I try to run my code on the new 2.3 Stalker and it no longer communicates correctly to my external device. The program uses digital pins 9, 10, 11, and 13. I noticed that you change the LED pin to D13 in the new version. I disabled the LED by cutting the pad on the back of the board. I also cut the link for SD card on D10. Where there any other changes?
BTW, there is no official documentation on your Wiki with regard to version 2.3

Hi ,
Very sorry for the late reply .
You can refer to the wiki of Stalker v2.2 , it is same as Stalker v2.3