It happened last year with the iOS10 release.
iPad Pro 9.7", Garmin Glo, SkyDemon... the GPS dropped out all over the shop. Was eventually fixed in 10.2 (I think).
Was a lovely introduction for me to iPad navigation having just passed my skills test using map & stopwatch :lol:
Anyway, now it works beautifully with the iPad (wifi only) and PilotAware in the Shareoplane.
But I'll not be upgrading my iPad to iOS11 until a few weeks after release and I don't see any issues reported from others
