It looks like some distro’s create a release for the sake of releasing a release.
Linux mint is an Ubuntu based distribution including proprietary software and patented technologies.
Bianca Light Edition however has removed those components because:
“In some countries where the legislation allows software patents to be enforced the Light Edition provides a way for users to legally download Linux Mint.”
This is a bogus reason; we have Ubuntu for that issue, Bianca Light is a:
“How do I get more attention release”
Well you got mine.