I have received my SDS1202X-E yesterday and it's on 1.3.26, which appears to be the latest firmware for this device (as already mentioned by @kcbrown).
I believe this model received multiple updates since it's release, I remember reading about it on this forum while researching which scope to choose.
Still, 1.3.26 is almost two years old by now. Would be nice to receive another update... (I don't believe there is nothing to fix or improve anymore

). Why don't they make the firmware open-source?
