There are currently no open bugs.

"haskell-either" versions published in Ubuntu

Focal (5.0.1.1-1build1): universe/misc
Eoan (5.0.1.1-1build1): universe/misc
Disco (5.0.1-2): universe/misc
Bionic (4.4.1.1-4build2): universe/misc
Xenial (4.4.1-3build1): universe/misc
Trusty (4.1-1build1): universe/misc