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HDK-SM721DC0-1V0 / 20230610 / Qizhi_tian

1. Initial Version

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HDK-SM721DC0-1V1 / 20230818 / Qizhi_tian

1BOM (1V1)
	1) Remove R3, add C9.
	2) Add new BOM file for Main IC MCM 1.8v & 3.3v flash.

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HDK-SM721DC0-2V0 / 20231124 / Qizhi_tian

1. SCH (2V0)
	1) Update RF part circuit 
2. PCB (2V0)
                1Update PCB layout according to SCH change
3. BOM (2V0)
	1) Add R20 & R21according to SCH change

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HDK-SM721DC0-2V1 / 20231204 / Qizhi_tian

1. SCH (2V1)
	1) Update the name of main IC
2. BOM (2V1)
	1) Update the name of main IC

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HDK-SM721DC0-2V2 / 20240123 / Qizhi_tian

1. SCH (2V2)
	1) Update annotations for ultra-low power mode


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HDK-SM721DC0-2V3 / 20240206 / Qizhi_tian

1. SCH (2V3)
	1) Update ANT matching (R13=1.5nH)
2. BOM (2V2)
	1) Update ANT matching (R13=1.5nH)


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HDK-SM721DC0-2V4 / 20240321 / Qizhi_tian

1. SCH (2V4)
	1) Update RF matching (R20=1.2nH, R21=1.8nH)
2. BOM (2V3)
	1) Update RF matching (R20=1.2nH, R21=1.8nH)


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HDK-SM721DC0-2V5 / 20240508 / Qizhi_tian

1. SCH (2V5)
	1) Update annotations for 1.25V PA DC power supply
2. BOM (2V4)
	1) Add a flash part number to the MCM psram BOM 


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HDK-SM721DC0-2V6 / 20241125 / Qizhi_tian

1. SCH (2V6)
	1) Update RF matching: C28 from NC to 1pF.
	2) Update the annotation of Pin2.
2. BOM (2V5)
	1) Add C28 to the BOM.
                2) Add a FLT DPX part number to the BOM.
	3) Adjust the name of BOM files.

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