We've published version 4.8 of Loupe Server & Desktop with some scalability enhancements to the server (particularly for customers with unusually large numbers of applications, environments, or promotion levels) and new view filters to make it easy to find events and errors by environment. 

For more details on what's new in this release, see the release announcement on our blog.

This version is already live for Loupe Cloud-Hosted customers;  To download it right now, head off to My.OnLoupe.Com.