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LAUNCHXL2-TMS57012: MCU different between old board and new board

Part Number: LAUNCHXL2-TMS57012
Other Parts Discussed in Thread: TMS570LS1224

As per checking with Texas instrument forums, it seems that we are not the only customer that has encountered this issue. Please see this link :
https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/984584/launchxl2-tms57012-different-processors-tms570ls-vs-rm46

Comparing the old board that we ordered last time to the latest delivered, we found out that the mcu soldered on the board is different.Please refer to the attached pictures as references.
May I know why the MCU soldered on the board is different? Any changes on the MCU and will it impacted the performance and specs? Please advise.

MCU.pdf