Feed files, in addition to several information fields, contains tags that describe implementations of the service, in distribution terms, package. At the same time, feed file could contain various implementations for various service versions. More over the same version could be represented by several implementations: | Feed files, in addition to several information fields, contains tags that describe implementations of the service, in distribution terms, package. At the same time, feed file could contain various implementations for various service versions. More over the same version could be represented by several implementations: |