There is a new Desktop Client for this release - v15.3

Image preview in requests

As you requested, now when you view a request in the Engage Client that has images attached, a preview of those images will display:

You can click on the image or filename to view larger.

Search results

When you search in the Engage Client by default you will be shown any matching requests that are currently open. However, you can now use the tabs to view those matching requests that have been completed or all requests:

We've also fixed a couple of bugs and updated some of our tech stack to ensure that our development cycle runs smoothly but we won't bore you with the details ;-).