apt> showpkg libdvdnav
Package: libdvdnav
Versions: 
0.1.10-alt6(/var/lib/apt/lists/ftp.altlinux.org_pub_distributions_ALTLinux_Sisyphus_i586_base_pkglist.classic)(/var/lib/apt/lists/ftp.linux.kiev.ua_pub_Linux_ALT_Sisyphus_i586_base_pkglist.classic)
0.1.10-alt3(/var/lib/rpm/Packages)

Packages built with the new version of the library require the new version, otherwise there are undefined symbols, but this is not detected
by RPM: RPM allows to upgrade a program without upgrading the library (https://bugzilla.altlinux.org/show_bug.cgi?id=16008 ). 

To solve this problem, symbols in the ABI could be versionized and dependent packages rebuilt.