Version in base suite: 2.3.0-13
Base version: pngcheck_2.3.0-13
Target version: pngcheck_3.0.3-1~deb11u1
Base files: pngcheck_2.3.0-13.dsc
Target files: pngcheck_3.0.3-1~deb11u1.dsc

+W: newer-standards-version 4.6.1 (current is 4.5.1)