There are currently no open bugs.

"libass" versions published in Ubuntu

Kinetic (1:0.16.0-1): universe/libs
Jammy (1:0.15.2-1): universe/libs
Impish (1:0.15.0-2): universe/libs
Focal (1:0.14.0-2): universe/libs
Bionic (1:0.14.0-1): universe/libs
Xenial (0.13.1-1): universe/libs
Trusty (0.10.1-3ubuntu1): universe/libs