For several use cases, it would be nice to archive important files which are generated during the build process along with each version.
Here are some examples, where I think this is very interesting:
1. For example the Beebyte Ofuscator allows to generate a mapping of the obfuscated method names, to decode the obfuscated stacktraces in the log.
2. The Windows PDB file for analyzing crash reports or debugging bugs wich are only reproducible in production builds.
If there would be an option to also trigger command line scripts, then this would also allow archiving results of 3rd party test and code analysis tools.