There are currently no open bugs.

"haskell-x509-system" versions published in Ubuntu

Eoan (1.6.6-4build1): universe/misc
Disco (1.6.6-4): universe/misc
Bionic (1.6.6-1build4): universe/misc
Xenial (1.6.3-1): universe/misc
Trusty (1.4.2-1build1): universe/misc