Hi, You are receiving this because you maintain a package that build-depends on imlib-dev -- the version of imlib linked with libpng3 (a.k.a libpng12).
This is to let you know that I have made a new upload that sets the SOVERSION to 11, the same as other distributions. The package imlib-dev has been superceeded by imlib11-dev, so your package needs to change its build-dep line: imlib-dev --> imlib11-dev If you prefer, I can make the change in an NMU. Let me know. Regards, -Steve