Box Sign API supports setting redirect URLs
Box CLI v3.1.0 released
Box Windows SDK v4.4.0 released
The Salesforce SDK can be deployed directly to Sandbox or Developer
organizations by using the Deploy to Salesforce
"Deploy to Salesforce" functionality is not owned or maintained by Box.
The SDK is also distributed as an unmanaged package:
Unmanaged packages can't be upgraded once installed in a Salesforce org so
future upgrades will have to be applied by cloning the repositories locally
and updating classes from your IDE.