Question: I have an update to my app that has been reviewed and is **Pending Developer Release**.

I have found a bug in this version and would actually like to reject this binary and keep my existing binary.

Once I fix the bug, I would like to re-upload a new binary. Is this possible?

Answer: 
Attaching screenshots from the App Store Connect (previously known as iTunes Connect) interface:

Select the version, then click on "cancel this release"

> 
> You can only edit some information while your version is pending developer release. To edit all information, **cancel this release**.
> 
> 
> 

[![ Stor](https://i.stack.imgur.com/yTgvX.png)](https://i.stack.imgur.com/yTgvX.png)

You will be prompted with a confirmation dialog:

> 
> Are you sure you want to cancel the release of version 2.6?
> 
> 
> If you cancel this release, you must choose a new binary and resubmit this app version. Your version will be reviewed again by App Review.
> 
> 
> 

![Cancel Release dialog](https://i.stack.imgur.com/bRYGR.png)
Explanation to kernix answer:

* select app in itunesconnect;
* select app version;
* you will see "You can only edit some information while your version is pending developer release. To edit all information, cancel this release." at the top of the page. Just click on "cancel this release" link.