I might not be the first one to ask this question but mine is slightly different from this and this
I uploaded a build for testflight review and it got approved. But now I have an improved version. I am aware that I can upload this updated version to itunesconnect.
The question is -
- How long it may take to get approval for my latest build?
- In case the latest build is still waiting for review, can I still continue testing (external testers) with my already approved version?