this new release brings
as noted in release notes
Here is source tarball https://github.com/RetroShare/RetroShare/archive/v0.6.4.tar.gz
Please file your request in accordance with https://solus-project.com/articles/packaging/request-a-package-update/en/
@JoshStrobl this package is already present in repository, so it's not package-request per se, it's a request to update, since binary in the repo is year old.
Edit: stupid me, ok, I'll udpate it in a moment