There are currently no open bugs.

"libzstd" versions published in Ubuntu

Disco (1.3.8+dfsg-3): main/misc
Cosmic (1.3.5+dfsg-1ubuntu1): main/misc
Bionic (1.3.3+dfsg-2ubuntu1): main/misc
Xenial-updates (1.3.1+dfsg-1~ubuntu0.16.04.1): universe/misc
Xenial (0.5.1-1): universe/misc