There are currently no open bugs.

"libpng1.6" versions published in Ubuntu

Kinetic (1.6.37-5): main/misc
Jammy (1.6.37-3build5): main/misc
Impish (1.6.37-3build4): main/misc
Focal (1.6.37-2): main/misc
Bionic-updates (1.6.34-1ubuntu0.18.04.2): main/misc
Bionic-security (1.6.34-1ubuntu0.18.04.2): main/misc
Bionic (1.6.34-1): main/misc
Xenial (1.6.20-2): universe/misc