Version in base suite: 1.4.15-3+deb11u1
Base version: libxstream-java_1.4.15-3+deb11u1
Target version: libxstream-java_1.4.15-3+deb11u2
Base files: libxstream-java_1.4.15-3+deb11u1.dsc
Target files: libxstream-java_1.4.15-3+deb11u2.dsc

-W: newer-standards-version 4.5.1 (current is 4.3.0)