nAN-36 Need Update?

Why Nordic doesn’t consider update of already 5 years old  nAN-36 Creating BluetoothRegistered Low Energy Applications Using nRF51822 ?

It is the most meaningful tutorial for starters I found so far and if you update it with the most popular nRF52832 and new nRF52* chips plus Segger Embedded Studio will be the perfect (missing right now) tutorial?

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