I’m in 0.7(0.29) and I don’t readily see an update option, although I’m not very “TestFlight savvy!” I haven’t tried reinstalling from scratch actually, so perhaps I should!
*edit
Just deleted and installed via the TestFlight link in this post, seems to be same build number, crashing right at startup - no login/Steemconnect. I’m on an iPhone X running 12.4 if it helps for the bug reporting!