diff --git a/code/API_definitions/call-forwarding-signal.yaml b/code/API_definitions/call-forwarding-signal.yaml
index c83dd4d..2f1389b 100644
--- a/code/API_definitions/call-forwarding-signal.yaml
+++ b/code/API_definitions/call-forwarding-signal.yaml
@@ -151,7 +151,7 @@ info:
     # FAQ's
     (FAQs will be added in a later version of the documentation)
 
-  version: 0.4.0
+  version: wip
   license:
     name: Apache 2.0
     url: https://www.apache.org/licenses/LICENSE-2.0.html
@@ -163,7 +163,7 @@ externalDocs:
 #                                     Servers                              #
 ############################################################################
 servers:
-  - url: "{apiRoot}/call-forwarding-signal/v0.4"
+  - url: "{apiRoot}/call-forwarding-signal/vwip"
     variables:
       apiRoot:
         default: http://localhost:9091
diff --git a/code/Test_definitions/call-forwarding-signal-retrieveCallForwarding.feature b/code/Test_definitions/call-forwarding-signal-retrieveCallForwarding.feature
index a48ccda..01ddfcb 100644
--- a/code/Test_definitions/call-forwarding-signal-retrieveCallForwarding.feature
+++ b/code/Test_definitions/call-forwarding-signal-retrieveCallForwarding.feature
@@ -1,4 +1,4 @@
-Feature: CAMARA Call Forwarding Signal  API, v0.4.0 - Operation retrieveCallForwarding
+Feature: CAMARA Call Forwarding Signal  API, vwip - Operation retrieveCallForwarding
   # Input to be provided by the implementation to the tester
   #
   # Implementation indications:
diff --git a/code/Test_definitions/call-forwarding-signal-retrieveUnconditionalCallForwarding.feature b/code/Test_definitions/call-forwarding-signal-retrieveUnconditionalCallForwarding.feature
index ba65f49..a3a3999 100644
--- a/code/Test_definitions/call-forwarding-signal-retrieveUnconditionalCallForwarding.feature
+++ b/code/Test_definitions/call-forwarding-signal-retrieveUnconditionalCallForwarding.feature
@@ -1,4 +1,4 @@
-Feature: CAMARA Call Forwarding Signal  API, v0.4.0 - Operation retrieveUnconditionalCallForwarding
+Feature: CAMARA Call Forwarding Signal  API, vwip - Operation retrieveUnconditionalCallForwarding
   # Input to be provided by the implementation to the tester
   #
   # Implementation indications: