How can I get started to develoop softdevice V7.3

I used to use sd api v5 s132 to develop the PC program corresponding to my nRF52840.


But now I find that the new program content provided on the official website is S140, so I want to continue my development. However, because I could not find the corresponding development kit, I used the contents of these two directories (Attachment 1) in my previous development to complete the development, but the newly downloaded softdevice of S140 only has the include folder(Attachment 2).

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