There are currently no open bugs.

"libsignal-protocol-c" versions published in Ubuntu

Eoan (2.3.1+git20171007-3): universe/misc
Disco (2.3.1+git20171007-3): universe/misc
Cosmic (2.3.1+git20171007-3): universe/misc
Bionic (2.3.1+git20171007-3): universe/misc