There are currently no open bugs.

"ray" versions published in Ubuntu

Eoan (2.3.1-6): universe/misc
Disco (2.3.1-6): universe/misc
Cosmic (2.3.1-6): universe/misc
Bionic (2.3.1-5): universe/misc
Xenial (2.3.1-2build2): universe/misc
Trusty (2.3.0-2): universe/misc