diff --git a/src/yang/etsi-nfv-common.yang b/src/yang/etsi-nfv-common.yang
index e5a678168719705b863954a2a7589ffceb627277..7077b5c7b1018057b7c02829dc02f44a51e76dd7 100644
--- a/src/yang/etsi-nfv-common.yang
+++ b/src/yang/etsi-nfv-common.yang
@@ -9,6 +9,14 @@ submodule etsi-nfv-common {
   description
     "Common data types for ETSI data models.";
 
+  revision 2019-10-01 {
+    description
+      "Version 2.7.1.
+
+       Common data structures to support VNFD and NSD according to:
+       ETSI GS NFV-IFA 014 Ed271v264
+       ETSI GS NFV-IFA 011 Ed271v264";
+  }
   revision 2019-04-25 {
     description
       "Initial revision
diff --git a/src/yang/etsi-nfv-ns.yang b/src/yang/etsi-nfv-ns.yang
index 94f8cfcabb23d45b8ce56bb06a72153a0d58daf6..ea46ecc5564346d5154018bd1ed74ffc2dbcb6d9 100644
--- a/src/yang/etsi-nfv-ns.yang
+++ b/src/yang/etsi-nfv-ns.yang
@@ -11,6 +11,14 @@ submodule etsi-nfv-ns {
   description
     "Models for NS according to ETSI GS NFV-IFA 014.";
 
+  revision 2019-10-01 {
+    description
+      "Version 2.7.1.
+
+       Common data structures to support VNFD and NSD according to:
+       ETSI GS NFV-IFA 014 Ed271v264
+       ETSI GS NFV-IFA 011 Ed271v264";
+  }
   revision 2019-04-25 {
     description
       "Initial revision
diff --git a/src/yang/etsi-nfv-nsd.yang b/src/yang/etsi-nfv-nsd.yang
index f74f00abe9eccfc4384cfd86f98ede8f34d50d80..304fc30e19f93ead8831dc49a57dd6d382b9f85a 100644
--- a/src/yang/etsi-nfv-nsd.yang
+++ b/src/yang/etsi-nfv-nsd.yang
@@ -15,8 +15,11 @@ module etsi-nfv-nsd {
 
   revision 2019-10-01 {
     description
-      "Revision 2.7.1.
-       NSD according to ETSI GS NFV-IFA 014 Ed271v264.";
+      "Version 2.7.1.
+
+       Common data structures to support VNFD and NSD according to:
+       ETSI GS NFV-IFA 014 Ed271v264
+       ETSI GS NFV-IFA 011 Ed271v264";
   }
   revision 2019-04-25 {
     description
diff --git a/src/yang/etsi-nfv-pnf.yang b/src/yang/etsi-nfv-pnf.yang
index ac49f29500cad1a5c1dc19cb4dc3eadec313a6fe..170e9638b87a37dba4fe7599d1bb97ed0d4c3c2b 100644
--- a/src/yang/etsi-nfv-pnf.yang
+++ b/src/yang/etsi-nfv-pnf.yang
@@ -12,6 +12,14 @@ submodule etsi-nfv-pnf {
   description
     "Models for PNFD according to GS NFV-IFA 014.";
 
+  revision 2019-10-01 {
+    description
+      "Version 2.7.1.
+
+       Common data structures to support VNFD and NSD according to:
+       ETSI GS NFV-IFA 014 Ed271v264
+       ETSI GS NFV-IFA 011 Ed271v264";
+  }
   revision 2019-04-25 {
     description
       "Initial revision.
diff --git a/src/yang/etsi-nfv-vnf.yang b/src/yang/etsi-nfv-vnf.yang
index 48cc23369ee60f6de42fd45e9d7553cc80735a13..09a6c7ca2a8f7bbb1c8ed93cdac9e0d2cc620aea 100755
--- a/src/yang/etsi-nfv-vnf.yang
+++ b/src/yang/etsi-nfv-vnf.yang
@@ -16,6 +16,14 @@ submodule etsi-nfv-vnf {
   description
     "Models for VNFD according to GS NFV-IFA 011.";
 
+  revision 2019-10-01 {
+    description
+      "Version 2.7.1.
+
+       Common data structures to support VNFD and NSD according to:
+       ETSI GS NFV-IFA 014 Ed271v264
+       ETSI GS NFV-IFA 011 Ed271v264";
+  }
   revision 2019-03-18 {
     description
       "Initial revision.