Issue tracking for experimental features

[cybercoder-naj]

What is the feature you are proposing?

I wish to use factory.createApp() but I see it is still experimental (in the docs). I was wondering to what extent is the instability of the function. Is there any issue track for this? What are the known bugs of using factory.createApp()?

[cybercoder-naj]

Here's another related issue, i think it would be great middleware#652

[yusukebe]

Hi @cybercoder-naj

It is heavily used, the feeling is good, there are no bugs, and we can confirm the API design is good! I think we can remove the experimental flag. Just wait a bit to make the plan to do it. Thanks!