There are currently no open bugs.

"mongrel2" versions published in Ubuntu

Focal (1.12.2-2): universe/misc
Eoan (1.12.2-1): universe/misc
Disco (1.12.0-2): universe/misc
Bionic (1.11.0-7build1): universe/misc
Xenial (1.11.0-1build1): universe/misc