Where to find the S132 SoftDevice documentation for BLE versions compatibility ?

[felan]

Hi, 

Does anyone know where to find the BLE backwards compatibly  of a given soft-device ?

I have looked at the PDF document given for my soft-device version S132, and it only mentions the latest Bluetooth version that it supports i.e 5.1. 

If I wanted to find out what would be the oldest Bluetooth version supported for this particular soft device ?   

Thanks, 

Regards 

[haakonsh]

I've never heard of a BLE stack that is not backward-compatible to BT 4.0. At least ours are. BT4.0 is still the backbone of the BLE spec.

[felan]

Thanks for the  information haakonsh.