diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/CHANGELOG.md b/sdk/digitaltwins/Azure.DigitalTwins.Core/CHANGELOG.md
index 64bd2e805939..2595f2eb1d3a 100644
--- a/sdk/digitaltwins/Azure.DigitalTwins.Core/CHANGELOG.md
+++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/CHANGELOG.md
@@ -19,3 +19,4 @@
 - N/A
 
 ## 1.0.0-preview.2
+
diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/DigitalTwinTests.cs b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/DigitalTwinTests.cs
index aa86e67f0acb..fe6ee18885a6 100644
--- a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/DigitalTwinTests.cs
+++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/DigitalTwinTests.cs
@@ -49,7 +49,12 @@ public async Task DigitalTwins_Lifecycle()
                 // update twin
                 string updateTwin = TestAssetsHelper.GetRoomTwinUpdatePayload();
 
-                await client.UpdateDigitalTwinAsync(roomTwinId, updateTwin).ConfigureAwait(false);
+                var requestOptions = new RequestOptions
+                {
+                    IfMatch = "*"
+                };
+
+                await client.UpdateDigitalTwinAsync(roomTwinId, updateTwin, requestOptions).ConfigureAwait(false);
 
                 // delete a twin
                 await client.DeleteDigitalTwinAsync(roomTwinId).ConfigureAwait(false);
diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_IncorrectCredentials_ThrowsUnauthorizedException.json b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_IncorrectCredentials_ThrowsUnauthorizedException.json
index dd9bd986474c..8403848a49c2 100644
--- a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_IncorrectCredentials_ThrowsUnauthorizedException.json
+++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_IncorrectCredentials_ThrowsUnauthorizedException.json
@@ -1,13 +1,13 @@
 {
   "Entries": [
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/someNonExistantTwin?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/someNonExistantTwin?api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "e4372e3f473b4caa28d4cf53148eff97",
         "x-ms-return-client-request-id": "true"
@@ -17,13 +17,13 @@
       "ResponseHeaders": {
         "Content-Length": "48",
         "Content-Type": "application/json",
-        "Date": "Tue, 02 Jun 2020 19:05:02 GMT"
+        "Date": "Mon, 08 Jun 2020 17:35:31 GMT"
       },
       "ResponseBody": "{ \u0022statusCode\u0022: 401, \u0022message\u0022: \u0022Unauthorized\u0022 }"
     }
   ],
   "Variables": {
-    "DIGITALTWINS_URL": "https://vinageshnew.api.wus2.digitaltwins.azure.net",
+    "DIGITALTWINS_URL": "https://azabbasitwin.api.wus2.digitaltwins.azure.net",
     "RandomSeed": "1966632250"
   }
 }
\ No newline at end of file
diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_IncorrectCredentials_ThrowsUnauthorizedExceptionAsync.json b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_IncorrectCredentials_ThrowsUnauthorizedExceptionAsync.json
index 1246b061001e..c73bd962282a 100644
--- a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_IncorrectCredentials_ThrowsUnauthorizedExceptionAsync.json
+++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_IncorrectCredentials_ThrowsUnauthorizedExceptionAsync.json
@@ -1,13 +1,13 @@
 {
   "Entries": [
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/someNonExistantTwin?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/someNonExistantTwin?api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "a7b06336ce18468364aa2a2b9c7de619",
         "x-ms-return-client-request-id": "true"
@@ -17,13 +17,13 @@
       "ResponseHeaders": {
         "Content-Length": "48",
         "Content-Type": "application/json",
-        "Date": "Tue, 02 Jun 2020 19:05:02 GMT"
+        "Date": "Mon, 08 Jun 2020 17:35:31 GMT"
       },
       "ResponseBody": "{ \u0022statusCode\u0022: 401, \u0022message\u0022: \u0022Unauthorized\u0022 }"
     }
   ],
   "Variables": {
-    "DIGITALTWINS_URL": "https://vinageshnew.api.wus2.digitaltwins.azure.net",
+    "DIGITALTWINS_URL": "https://azabbasitwin.api.wus2.digitaltwins.azure.net",
     "RandomSeed": "1650273333"
   }
 }
\ No newline at end of file
diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_Lifecycle.json b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_Lifecycle.json
index 2e84f24b6dab..225afaf4ff08 100644
--- a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_Lifecycle.json
+++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_Lifecycle.json
@@ -1,13 +1,13 @@
 {
   "Entries": [
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin1292386624?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin1292386624?api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "cc833d55fdc242f202819c53e328694a",
         "x-ms-return-client-request-id": "true"
@@ -17,7 +17,7 @@
       "ResponseHeaders": {
         "Content-Length": "271",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:03 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:31 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
@@ -28,13 +28,13 @@
       }
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/models/dtmi%3Aexample%3Afloor%3B11991704?includeModelDefinition=true\u0026api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/models/dtmi%3Aexample%3Afloor%3B11991704?includeModelDefinition=true\u0026api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "77d2c6eff1fe123f19b9f5b3df8788da",
         "x-ms-return-client-request-id": "true"
@@ -44,7 +44,7 @@
       "ResponseHeaders": {
         "Content-Length": "212",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:03 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:31 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
@@ -55,13 +55,13 @@
       }
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/models/dtmi%3Aexample%3Aroom%3B115359225?includeModelDefinition=true\u0026api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/models/dtmi%3Aexample%3Aroom%3B115359225?includeModelDefinition=true\u0026api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "6f6dcaaf8a593513285ccb4d45da3cd5",
         "x-ms-return-client-request-id": "true"
@@ -71,7 +71,7 @@
       "ResponseHeaders": {
         "Content-Length": "212",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:04 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
@@ -82,15 +82,15 @@
       }
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/models?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/models?api-version=2020-05-31-preview",
       "RequestMethod": "POST",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "Content-Length": "804",
         "Content-Type": "application/json; charset=utf-8",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "19d1e09c56c9444bbaa943fd8f22fa14",
         "x-ms-return-client-request-id": "true"
@@ -100,21 +100,21 @@
       "ResponseHeaders": {
         "Content-Length": "193",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:04 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
-      "ResponseBody": "[{\u0022id\u0022:\u0022dtmi:example:room;115359225\u0022,\u0022description\u0022:{\u0022en\u0022:\u0022An enclosure inside a building.\u0022},\u0022displayName\u0022:{\u0022en\u0022:\u0022Room\u0022},\u0022decommissioned\u0022:false,\u0022uploadTime\u0022:\u00222020-06-02T19:05:05.1963235\u002B00:00\u0022}]"
+      "ResponseBody": "[{\u0022id\u0022:\u0022dtmi:example:room;115359225\u0022,\u0022description\u0022:{\u0022en\u0022:\u0022An enclosure inside a building.\u0022},\u0022displayName\u0022:{\u0022en\u0022:\u0022Room\u0022},\u0022decommissioned\u0022:false,\u0022uploadTime\u0022:\u00222020-06-08T17:35:32.9357342\u002B00:00\u0022}]"
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin1292386624?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin1292386624?api-version=2020-05-31-preview",
       "RequestMethod": "PUT",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "Content-Length": "150",
         "Content-Type": "application/json; charset=utf-8",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "9e787c78f7dd3b96bf41d59574c5d4de",
         "x-ms-return-client-request-id": "true"
@@ -122,15 +122,15 @@
       "RequestBody": "{  \u0022$metadata\u0022: {    \u0022$model\u0022: \u0022dtmi:example:room;115359225\u0022  },  \u0022Temperature\u0022: 80,  \u0022Humidity\u0022: 25,  \u0022IsOccupied\u0022: true,  \u0022EmployeeId\u0022: \u0022Employee1\u0022}",
       "StatusCode": 200,
       "ResponseHeaders": {
-        "Content-Length": "654",
+        "Content-Length": "660",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:05 GMT",
-        "ETag": "W/\u002203a962f4-261d-47c5-9111-9171bc2549b5\u0022",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
+        "ETag": "W/\u0022a31c96e5-8ea5-4948-b2ef-004836df1f4d\u0022",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
         "$dtId": "roomTwin1292386624",
-        "$etag": "03a962f4-261d-47c5-9111-9171bc2549b5",
+        "$etag": "W/\u0022a31c96e5-8ea5-4948-b2ef-004836df1f4d\u0022",
         "Temperature": 80,
         "Humidity": 25,
         "IsOccupied": true,
@@ -169,13 +169,13 @@
       }
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin1292386624?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin1292386624?api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "a743deb8c1b7589e7e29b5b04716a505",
         "x-ms-return-client-request-id": "true"
@@ -183,15 +183,15 @@
       "RequestBody": null,
       "StatusCode": 200,
       "ResponseHeaders": {
-        "Content-Length": "654",
+        "Content-Length": "660",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:05 GMT",
-        "ETag": "W/\u002203a962f4-261d-47c5-9111-9171bc2549b5\u0022",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
+        "ETag": "W/\u0022a31c96e5-8ea5-4948-b2ef-004836df1f4d\u0022",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
         "$dtId": "roomTwin1292386624",
-        "$etag": "03a962f4-261d-47c5-9111-9171bc2549b5",
+        "$etag": "W/\u0022a31c96e5-8ea5-4948-b2ef-004836df1f4d\u0022",
         "Temperature": 80,
         "Humidity": 25,
         "IsOccupied": true,
@@ -230,15 +230,16 @@
       }
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin1292386624?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin1292386624?api-version=2020-05-31-preview",
       "RequestMethod": "PATCH",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "Content-Length": "131",
         "Content-Type": "application/json; charset=utf-8",
+        "If-Match": "*",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "c9d4b6619e62a5f74a95598780b6cff5",
         "x-ms-return-client-request-id": "true"
@@ -247,20 +248,20 @@
       "StatusCode": 204,
       "ResponseHeaders": {
         "Content-Length": "0",
-        "Date": "Tue, 02 Jun 2020 19:05:05 GMT",
-        "ETag": "W/\u00225c5b23a8-9f1a-42f1-a330-517a00141c83\u0022",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
+        "ETag": "W/\u0022fba38c20-b9d8-47e4-9b20-24f4454f8aae\u0022",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": []
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin1292386624?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin1292386624?api-version=2020-05-31-preview",
       "RequestMethod": "DELETE",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "b14464d552dfb75ddd201fb441e6f4a9",
         "x-ms-return-client-request-id": "true"
@@ -269,19 +270,19 @@
       "StatusCode": 204,
       "ResponseHeaders": {
         "Content-Length": "0",
-        "Date": "Tue, 02 Jun 2020 19:05:05 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": []
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin1292386624?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin1292386624?api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "bd33d09b0bf0197ce69d5d216816d7c8",
         "x-ms-return-client-request-id": "true"
@@ -291,7 +292,7 @@
       "ResponseHeaders": {
         "Content-Length": "271",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:05 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
@@ -302,13 +303,13 @@
       }
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/models/dtmi%3Aexample%3Aroom%3B115359225?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/models/dtmi%3Aexample%3Aroom%3B115359225?api-version=2020-05-31-preview",
       "RequestMethod": "DELETE",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "e2dac059f4d10f25591deb417f426364",
         "x-ms-return-client-request-id": "true"
@@ -317,14 +318,14 @@
       "StatusCode": 204,
       "ResponseHeaders": {
         "Content-Length": "0",
-        "Date": "Tue, 02 Jun 2020 19:05:05 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:33 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": []
     }
   ],
   "Variables": {
-    "DIGITALTWINS_URL": "https://vinageshnew.api.wus2.digitaltwins.azure.net",
+    "DIGITALTWINS_URL": "https://azabbasitwin.api.wus2.digitaltwins.azure.net",
     "RandomSeed": "972541820"
   }
 }
\ No newline at end of file
diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_LifecycleAsync.json b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_LifecycleAsync.json
index 4d7ea1952a8c..34c8a83fd06b 100644
--- a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_LifecycleAsync.json
+++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_LifecycleAsync.json
@@ -1,13 +1,13 @@
 {
   "Entries": [
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin516462851?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin516462851?api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "f5024f49bbc56e357098d6637c6de54e",
         "x-ms-return-client-request-id": "true"
@@ -17,7 +17,7 @@
       "ResponseHeaders": {
         "Content-Length": "270",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:02 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:31 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
@@ -28,13 +28,13 @@
       }
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/models/dtmi%3Aexample%3Afloor%3B15382106?includeModelDefinition=true\u0026api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/models/dtmi%3Aexample%3Afloor%3B15382106?includeModelDefinition=true\u0026api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "35a5ebe86527dd37f6d3e6de0d0c414a",
         "x-ms-return-client-request-id": "true"
@@ -44,7 +44,7 @@
       "ResponseHeaders": {
         "Content-Length": "212",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:03 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:31 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
@@ -55,13 +55,13 @@
       }
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/models/dtmi%3Aexample%3Aroom%3B115537104?includeModelDefinition=true\u0026api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/models/dtmi%3Aexample%3Aroom%3B115537104?includeModelDefinition=true\u0026api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "df9b835336eadaae55a8dd2ecb0b0d19",
         "x-ms-return-client-request-id": "true"
@@ -71,7 +71,7 @@
       "ResponseHeaders": {
         "Content-Length": "212",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:03 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
@@ -82,15 +82,15 @@
       }
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/models?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/models?api-version=2020-05-31-preview",
       "RequestMethod": "POST",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "Content-Length": "804",
         "Content-Type": "application/json; charset=utf-8",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "7071111d22cdcaea17cfe74f90628c95",
         "x-ms-return-client-request-id": "true"
@@ -100,21 +100,21 @@
       "ResponseHeaders": {
         "Content-Length": "193",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:04 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
-      "ResponseBody": "[{\u0022id\u0022:\u0022dtmi:example:room;115537104\u0022,\u0022description\u0022:{\u0022en\u0022:\u0022An enclosure inside a building.\u0022},\u0022displayName\u0022:{\u0022en\u0022:\u0022Room\u0022},\u0022decommissioned\u0022:false,\u0022uploadTime\u0022:\u00222020-06-02T19:05:04.8850892\u002B00:00\u0022}]"
+      "ResponseBody": "[{\u0022id\u0022:\u0022dtmi:example:room;115537104\u0022,\u0022description\u0022:{\u0022en\u0022:\u0022An enclosure inside a building.\u0022},\u0022displayName\u0022:{\u0022en\u0022:\u0022Room\u0022},\u0022decommissioned\u0022:false,\u0022uploadTime\u0022:\u00222020-06-08T17:35:32.9467705\u002B00:00\u0022}]"
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin516462851?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin516462851?api-version=2020-05-31-preview",
       "RequestMethod": "PUT",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "Content-Length": "150",
         "Content-Type": "application/json; charset=utf-8",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "621a10188cb2b5fef75ad1bc59af2ac8",
         "x-ms-return-client-request-id": "true"
@@ -122,15 +122,15 @@
       "RequestBody": "{  \u0022$metadata\u0022: {    \u0022$model\u0022: \u0022dtmi:example:room;115537104\u0022  },  \u0022Temperature\u0022: 80,  \u0022Humidity\u0022: 25,  \u0022IsOccupied\u0022: true,  \u0022EmployeeId\u0022: \u0022Employee1\u0022}",
       "StatusCode": 200,
       "ResponseHeaders": {
-        "Content-Length": "653",
+        "Content-Length": "659",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:04 GMT",
-        "ETag": "W/\u002268fbab1e-1d28-47ab-b5d1-15c595e8b3d3\u0022",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
+        "ETag": "W/\u00224740a783-79bb-4e3a-bce4-4019fc7de0ad\u0022",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
         "$dtId": "roomTwin516462851",
-        "$etag": "68fbab1e-1d28-47ab-b5d1-15c595e8b3d3",
+        "$etag": "W/\u00224740a783-79bb-4e3a-bce4-4019fc7de0ad\u0022",
         "Temperature": 80,
         "Humidity": 25,
         "IsOccupied": true,
@@ -169,13 +169,13 @@
       }
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin516462851?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin516462851?api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "faefc4d9dad0319e99d1c81b4e5f4af2",
         "x-ms-return-client-request-id": "true"
@@ -183,15 +183,15 @@
       "RequestBody": null,
       "StatusCode": 200,
       "ResponseHeaders": {
-        "Content-Length": "653",
+        "Content-Length": "659",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:04 GMT",
-        "ETag": "W/\u002268fbab1e-1d28-47ab-b5d1-15c595e8b3d3\u0022",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
+        "ETag": "W/\u00224740a783-79bb-4e3a-bce4-4019fc7de0ad\u0022",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
         "$dtId": "roomTwin516462851",
-        "$etag": "68fbab1e-1d28-47ab-b5d1-15c595e8b3d3",
+        "$etag": "W/\u00224740a783-79bb-4e3a-bce4-4019fc7de0ad\u0022",
         "Temperature": 80,
         "Humidity": 25,
         "IsOccupied": true,
@@ -230,15 +230,16 @@
       }
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin516462851?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin516462851?api-version=2020-05-31-preview",
       "RequestMethod": "PATCH",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "Content-Length": "131",
         "Content-Type": "application/json; charset=utf-8",
+        "If-Match": "*",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "bb15481babf0906713bb7973502e7168",
         "x-ms-return-client-request-id": "true"
@@ -247,20 +248,20 @@
       "StatusCode": 204,
       "ResponseHeaders": {
         "Content-Length": "0",
-        "Date": "Tue, 02 Jun 2020 19:05:04 GMT",
-        "ETag": "W/\u002285a59810-e4bb-4e6b-90da-0e83480b2f5e\u0022",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
+        "ETag": "W/\u0022515a9fa3-fee9-4e6e-801a-c317600a6d17\u0022",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": []
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin516462851?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin516462851?api-version=2020-05-31-preview",
       "RequestMethod": "DELETE",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "cb761fa491723ec471e8c8e1c4e36697",
         "x-ms-return-client-request-id": "true"
@@ -269,19 +270,19 @@
       "StatusCode": 204,
       "ResponseHeaders": {
         "Content-Length": "0",
-        "Date": "Tue, 02 Jun 2020 19:05:04 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": []
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin516462851?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/roomTwin516462851?api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "11a0de106f992dd75d5fe714612be06b",
         "x-ms-return-client-request-id": "true"
@@ -291,7 +292,7 @@
       "ResponseHeaders": {
         "Content-Length": "270",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:05 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:32 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
@@ -302,13 +303,13 @@
       }
     },
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/models/dtmi%3Aexample%3Aroom%3B115537104?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/models/dtmi%3Aexample%3Aroom%3B115537104?api-version=2020-05-31-preview",
       "RequestMethod": "DELETE",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "2f765f5f7ee88a8083d74a08e285cc30",
         "x-ms-return-client-request-id": "true"
@@ -317,14 +318,14 @@
       "StatusCode": 204,
       "ResponseHeaders": {
         "Content-Length": "0",
-        "Date": "Tue, 02 Jun 2020 19:05:05 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:33 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": []
     }
   ],
   "Variables": {
-    "DIGITALTWINS_URL": "https://vinageshnew.api.wus2.digitaltwins.azure.net",
+    "DIGITALTWINS_URL": "https://azabbasitwin.api.wus2.digitaltwins.azure.net",
     "RandomSeed": "934257658"
   }
 }
\ No newline at end of file
diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_TwinNotExist_ThrowsNotFoundException.json b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_TwinNotExist_ThrowsNotFoundException.json
index a78fe9bca4dc..57814c57371b 100644
--- a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_TwinNotExist_ThrowsNotFoundException.json
+++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_TwinNotExist_ThrowsNotFoundException.json
@@ -1,13 +1,13 @@
 {
   "Entries": [
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/someNonExistantTwin?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/someNonExistantTwin?api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "3c9f99ca5ab7bbcd1d7859b690c85db7",
         "x-ms-return-client-request-id": "true"
@@ -17,7 +17,7 @@
       "ResponseHeaders": {
         "Content-Length": "272",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:05 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:33 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
@@ -29,7 +29,7 @@
     }
   ],
   "Variables": {
-    "DIGITALTWINS_URL": "https://vinageshnew.api.wus2.digitaltwins.azure.net",
+    "DIGITALTWINS_URL": "https://azabbasitwin.api.wus2.digitaltwins.azure.net",
     "RandomSeed": "1567953324"
   }
 }
\ No newline at end of file
diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_TwinNotExist_ThrowsNotFoundExceptionAsync.json b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_TwinNotExist_ThrowsNotFoundExceptionAsync.json
index 0364f4adf7cc..65921a1f1bf1 100644
--- a/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_TwinNotExist_ThrowsNotFoundExceptionAsync.json
+++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/tests/SessionRecords/DigitalTwinTests/DigitalTwins_TwinNotExist_ThrowsNotFoundExceptionAsync.json
@@ -1,13 +1,13 @@
 {
   "Entries": [
     {
-      "RequestUri": "https://vinageshnew.api.wus2.digitaltwins.azure.net/digitaltwins/someNonExistantTwin?api-version=2020-05-31-preview",
+      "RequestUri": "https://azabbasitwin.api.wus2.digitaltwins.azure.net/digitaltwins/someNonExistantTwin?api-version=2020-05-31-preview",
       "RequestMethod": "GET",
       "RequestHeaders": {
         "Authorization": "Sanitized",
         "User-Agent": [
-          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200602.1",
-          "(.NET Core 4.6.28801.04; Microsoft Windows 10.0.18363 )"
+          "azsdk-net-DigitalTwins.Core/1.0.0-dev.20200608.1",
+          "(.NET Core 4.6.28516.03; Microsoft Windows 10.0.18363 )"
         ],
         "x-ms-client-request-id": "fad80ca47d17c1fc7b50b1bdd349b138",
         "x-ms-return-client-request-id": "true"
@@ -17,7 +17,7 @@
       "ResponseHeaders": {
         "Content-Length": "272",
         "Content-Type": "application/json; charset=utf-8",
-        "Date": "Tue, 02 Jun 2020 19:05:05 GMT",
+        "Date": "Mon, 08 Jun 2020 17:35:33 GMT",
         "Strict-Transport-Security": "max-age=2592000"
       },
       "ResponseBody": {
@@ -29,7 +29,7 @@
     }
   ],
   "Variables": {
-    "DIGITALTWINS_URL": "https://vinageshnew.api.wus2.digitaltwins.azure.net",
+    "DIGITALTWINS_URL": "https://azabbasitwin.api.wus2.digitaltwins.azure.net",
     "RandomSeed": "221072636"
   }
 }
\ No newline at end of file