deltarpm 3.5+git20130520.7ededff+dfsg-1 (arm64 binary) in ubuntu trusty

 A deltarpm contains the differences between an old and a new version of
 an RPM. This makes it possible to recreate the new RPM from the
 deltarpm and the old RPM.
 .
 On Debian and derived systems these tools may be useful for creating
 and maintaining repositories of RPM packages.