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HDK-SM721DA0-1V0 / 20230626 / gavin_gao 

1. Initial Version

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HDK-SM721DA0-2V0 / 20231213 / gavin_gao  

1、SCH (2V0)
	1) add RFIO pi matching before DPX
2、BOM (2V0)
	1) update BOM as SCH changing

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HDK-SM721DA0-2V1 / 20240202 / gavin_gao  

1、SCH (2V1)
	1) Antenna matching R12=1.5nH
1、BOM(2V1)
	1)  R12=1.5nH
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HDK-SM721DA0-2V2 / 20240329 / gavin_gao  

1、BOM(2V2)
	1)list add“BOM-SM711DA0-2V2(single die)”
	2)antenna matching value change：R104=1.2nH, R105=1.8nH，C50=0.1pF
3、SCH(2V2)
	antenna matching value change：R104=1.2nH, R105=1.8nH，C50=0.1pF
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HDK-SM721DA0-2V3 / 20240508 / gavin_gao  

1、BOM(2V3)
	1)BOM of"for Main IC MCM psram" add another flash


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HDK-SM721DA0-3V0 / 20241023 / qizhi_tian 

1、PCB(3V0)
	1) Update the trace of flash. 
2、SCH(3V0)
	1) Same as SCH(2V2)
3、BOM(3V0)
	1)Add ACX & FLT DPXs to the BOM.

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HDK-SM721DA0-3V1 / 20241125 / qizhi_tian 

1、PCB(3V0)
	1) PCB remains unchanged, only adjusting the soldmask top layer to prevent the antenna from exposing copper. 
2、SCH(3V1)
	1) Update RF matching: C51=1pF.
	2) Update the annotation of Pin2.
3、BOM(3V1)
	1) Add C51 to the BOM.
	2) Adjust the name of BOM file.


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