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Promotion of s4envi:hasRevisionNumber and other properties (saref-portal#45)
From https://labs.etsi.org/rep/saref/saref-portal/-/issues/45 * DP s4envi:hasRevisionNumber defines the revision number of a certain entity (e.g., a device). It could be promoted to SAREF Core. * DP s4envi:hasVersion defines the version of a certain entity (e.g., a device). It could be promoted to SAREF Core.
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