There is a reason they only trickle new Roku software out slowly, especially at first -- so that problems not caught during beta testing can be reported and fixed before they affect thousands and thousands of installations. Sometimes a bunch of channels have to update their apps to deal with the Roku update, and despite having ample notice to take care of this befire the Roku rekease, many of them struggle mightily. Even with the gradual release, the changeovers I've experienced to 9.2 and 9.3 have been painful.
In all honesty, I'm not in a hurry to get 9.4.
Roku Streaming Stick +, 3810X, Ser YH0059427035, wifi - Samsung UN55ES6100
Roku Streaming Stick, 3600X, Ser 5S56D8240827, wifi - JVC EM37T