nrfgo studio is kinda deprecated, 2 years since it was updated or something, so that's the reason it's pulling an old version. nRF connect for desktop is the cool kid now: www.nordicsemi.com/.../nRF-Connect-for-desktop
But the latest nRF5 SDK (v15.0.0) - in "Compiling and running a first example" - specifically directs to use nRFgo Studio!
If a SoftDevice has been installed on the board or if you are not sure, use nRFgo Studio to make sure that you erase the whole board. Select your device in the Device Manager pane. Then click the Erase All button.
And this functionality is not available in nRF Connect.
So: what should I be using for this in place of nRFgo ?
Also, nRFgo doesn't seem to recognise nRF52810 - presumably because it's too old.