diff --git a/samples/javascript_nodejs/language-generation/05.a.multi-turn-prompt-with-language-fallback/.env b/samples/javascript_nodejs/language-generation/05.a.multi-turn-prompt-with-language-fallback/.env
index a695b3bf05..cdabaa4d21 100644
--- a/samples/javascript_nodejs/language-generation/05.a.multi-turn-prompt-with-language-fallback/.env
+++ b/samples/javascript_nodejs/language-generation/05.a.multi-turn-prompt-with-language-fallback/.env
@@ -1,2 +1,4 @@
+MicrosoftAppType=
 MicrosoftAppId=
 MicrosoftAppPassword=
+MicrosoftAppTenantId=
diff --git a/samples/javascript_nodejs/language-generation/05.a.multi-turn-prompt-with-language-fallback/index.js b/samples/javascript_nodejs/language-generation/05.a.multi-turn-prompt-with-language-fallback/index.js
index 23399c9da6..5b753991e9 100644
--- a/samples/javascript_nodejs/language-generation/05.a.multi-turn-prompt-with-language-fallback/index.js
+++ b/samples/javascript_nodejs/language-generation/05.a.multi-turn-prompt-with-language-fallback/index.js
@@ -27,7 +27,9 @@ const { UserProfileDialog } = require('./dialogs/userProfileDialog');
 
 const credentialsFactory = new ConfigurationServiceClientCredentialFactory({
     MicrosoftAppId: process.env.MicrosoftAppId,
-    MicrosoftAppPassword: process.env.MicrosoftAppPassword
+    MicrosoftAppPassword: process.env.MicrosoftAppPassword,
+    MicrosoftAppType: process.env.MicrosoftAppType,
+    MicrosoftAppTenantId: process.env.MicrosoftAppTenantId
 });
 
 const botFrameworkAuthentication = createBotFrameworkAuthenticationFromConfiguration(null, credentialsFactory);
diff --git a/samples/javascript_nodejs/language-generation/05.a.multi-turn-prompt-with-language-fallback/package.json b/samples/javascript_nodejs/language-generation/05.a.multi-turn-prompt-with-language-fallback/package.json
index e4f708c9b3..49eec1c85d 100644
--- a/samples/javascript_nodejs/language-generation/05.a.multi-turn-prompt-with-language-fallback/package.json
+++ b/samples/javascript_nodejs/language-generation/05.a.multi-turn-prompt-with-language-fallback/package.json
@@ -16,9 +16,9 @@
         "url": "https://github.com/Microsoft/BotBuilder-Samples.git"
     },
     "dependencies": {
-        "botbuilder": "~4.14.0",
-        "botbuilder-dialogs": "~4.14.0",
-        "botbuilder-lg": "~4.14.0",
+        "botbuilder": "~4.15.0-rc0",
+        "botbuilder-dialogs": "~4.15.0-rc0",
+        "botbuilder-lg": "~4.15.0-rc0",
         "dotenv": "^8.2.0",
         "path": "^0.12.7",
         "restify": "~8.5.1"
diff --git a/samples/javascript_nodejs/language-generation/05.multi-turn-prompt/.env b/samples/javascript_nodejs/language-generation/05.multi-turn-prompt/.env
index a695b3bf05..cdabaa4d21 100644
--- a/samples/javascript_nodejs/language-generation/05.multi-turn-prompt/.env
+++ b/samples/javascript_nodejs/language-generation/05.multi-turn-prompt/.env
@@ -1,2 +1,4 @@
+MicrosoftAppType=
 MicrosoftAppId=
 MicrosoftAppPassword=
+MicrosoftAppTenantId=
diff --git a/samples/javascript_nodejs/language-generation/05.multi-turn-prompt/index.js b/samples/javascript_nodejs/language-generation/05.multi-turn-prompt/index.js
index e831ad0f66..b26e1c89aa 100644
--- a/samples/javascript_nodejs/language-generation/05.multi-turn-prompt/index.js
+++ b/samples/javascript_nodejs/language-generation/05.multi-turn-prompt/index.js
@@ -27,7 +27,9 @@ const { UserProfileDialog } = require('./dialogs/userProfileDialog');
 
 const credentialsFactory = new ConfigurationServiceClientCredentialFactory({
     MicrosoftAppId: process.env.MicrosoftAppId,
-    MicrosoftAppPassword: process.env.MicrosoftAppPassword
+    MicrosoftAppPassword: process.env.MicrosoftAppPassword,
+    MicrosoftAppType: process.env.MicrosoftAppType,
+    MicrosoftAppTenantId: process.env.MicrosoftAppTenantId
 });
 
 const botFrameworkAuthentication = createBotFrameworkAuthenticationFromConfiguration(null, credentialsFactory);
diff --git a/samples/javascript_nodejs/language-generation/05.multi-turn-prompt/package.json b/samples/javascript_nodejs/language-generation/05.multi-turn-prompt/package.json
index e4f708c9b3..49eec1c85d 100644
--- a/samples/javascript_nodejs/language-generation/05.multi-turn-prompt/package.json
+++ b/samples/javascript_nodejs/language-generation/05.multi-turn-prompt/package.json
@@ -16,9 +16,9 @@
         "url": "https://github.com/Microsoft/BotBuilder-Samples.git"
     },
     "dependencies": {
-        "botbuilder": "~4.14.0",
-        "botbuilder-dialogs": "~4.14.0",
-        "botbuilder-lg": "~4.14.0",
+        "botbuilder": "~4.15.0-rc0",
+        "botbuilder-dialogs": "~4.15.0-rc0",
+        "botbuilder-lg": "~4.15.0-rc0",
         "dotenv": "^8.2.0",
         "path": "^0.12.7",
         "restify": "~8.5.1"
diff --git a/samples/javascript_nodejs/language-generation/06.using-cards/.env b/samples/javascript_nodejs/language-generation/06.using-cards/.env
index 660828e3e8..cdabaa4d21 100644
--- a/samples/javascript_nodejs/language-generation/06.using-cards/.env
+++ b/samples/javascript_nodejs/language-generation/06.using-cards/.env
@@ -1,2 +1,4 @@
+MicrosoftAppType=
 MicrosoftAppId=
-MicrosoftAppPassword=
\ No newline at end of file
+MicrosoftAppPassword=
+MicrosoftAppTenantId=
diff --git a/samples/javascript_nodejs/language-generation/06.using-cards/index.js b/samples/javascript_nodejs/language-generation/06.using-cards/index.js
index ef77d4401c..81ff119d92 100644
--- a/samples/javascript_nodejs/language-generation/06.using-cards/index.js
+++ b/samples/javascript_nodejs/language-generation/06.using-cards/index.js
@@ -28,7 +28,9 @@ const { MainDialog } = require('./dialogs/mainDialog');
 
 const credentialsFactory = new ConfigurationServiceClientCredentialFactory({
     MicrosoftAppId: process.env.MicrosoftAppId,
-    MicrosoftAppPassword: process.env.MicrosoftAppPassword
+    MicrosoftAppPassword: process.env.MicrosoftAppPassword,
+    MicrosoftAppType: process.env.MicrosoftAppType,
+    MicrosoftAppTenantId: process.env.MicrosoftAppTenantId
 });
 
 const botFrameworkAuthentication = createBotFrameworkAuthenticationFromConfiguration(null, credentialsFactory);
diff --git a/samples/javascript_nodejs/language-generation/06.using-cards/package.json b/samples/javascript_nodejs/language-generation/06.using-cards/package.json
index c565885ca7..de1e05e2d4 100644
--- a/samples/javascript_nodejs/language-generation/06.using-cards/package.json
+++ b/samples/javascript_nodejs/language-generation/06.using-cards/package.json
@@ -16,9 +16,9 @@
         "url": "https://github.com/Microsoft/BotBuilder-Samples.git"
     },
     "dependencies": {
-        "botbuilder": "~4.14.0",
-        "botbuilder-dialogs": "~4.14.0",
-        "botbuilder-lg": "~4.14.0",
+        "botbuilder": "~4.15.0-rc0",
+        "botbuilder-dialogs": "~4.15.0-rc0",
+        "botbuilder-lg": "~4.15.0-rc0",
         "dotenv": "^8.2.0",
         "restify": "~8.5.1"
     },
diff --git a/samples/javascript_nodejs/language-generation/13.core-bot/.env b/samples/javascript_nodejs/language-generation/13.core-bot/.env
new file mode 100644
index 0000000000..a6c44320c8
--- /dev/null
+++ b/samples/javascript_nodejs/language-generation/13.core-bot/.env
@@ -0,0 +1,7 @@
+MicrosoftAppType=
+MicrosoftAppId=
+MicrosoftAppPassword=
+MicrosoftAppTenantId=
+LuisAppId=
+LuisAPIKey=
+LuisAPIHostName=
diff --git a/samples/javascript_nodejs/language-generation/13.core-bot/.gitignore b/samples/javascript_nodejs/language-generation/13.core-bot/.gitignore
index faf84ac400..8f75092f19 100644
--- a/samples/javascript_nodejs/language-generation/13.core-bot/.gitignore
+++ b/samples/javascript_nodejs/language-generation/13.core-bot/.gitignore
@@ -1,4 +1,3 @@
 node_modules/
 .nyc_output/
 .vscode/
-.env
\ No newline at end of file
diff --git a/samples/javascript_nodejs/language-generation/13.core-bot/index.js b/samples/javascript_nodejs/language-generation/13.core-bot/index.js
index 0530b590ff..a388e3b950 100644
--- a/samples/javascript_nodejs/language-generation/13.core-bot/index.js
+++ b/samples/javascript_nodejs/language-generation/13.core-bot/index.js
@@ -37,7 +37,9 @@ const BOOKING_DIALOG = 'bookingDialog';
 
 const credentialsFactory = new ConfigurationServiceClientCredentialFactory({
     MicrosoftAppId: process.env.MicrosoftAppId,
-    MicrosoftAppPassword: process.env.MicrosoftAppPassword
+    MicrosoftAppPassword: process.env.MicrosoftAppPassword,
+    MicrosoftAppType: process.env.MicrosoftAppType,
+    MicrosoftAppTenantId: process.env.MicrosoftAppTenantId
 });
 
 const botFrameworkAuthentication = createBotFrameworkAuthenticationFromConfiguration(null, credentialsFactory);
diff --git a/samples/javascript_nodejs/language-generation/13.core-bot/package.json b/samples/javascript_nodejs/language-generation/13.core-bot/package.json
index 1df7a2c3c2..9f58af4b84 100644
--- a/samples/javascript_nodejs/language-generation/13.core-bot/package.json
+++ b/samples/javascript_nodejs/language-generation/13.core-bot/package.json
@@ -17,11 +17,11 @@
     },
     "dependencies": {
         "@microsoft/recognizers-text-data-types-timex-expression": "1.1.4",
-        "botbuilder": "~4.14.0",
-        "botbuilder-ai": "~4.14.0",
-        "botbuilder-dialogs": "~4.14.0",
-        "botbuilder-testing": "~4.14.0",
-        "botbuilder-lg": "~4.14.0",
+        "botbuilder": "~4.15.0-rc0",
+        "botbuilder-ai": "~4.15.0-rc0",
+        "botbuilder-dialogs": "~4.15.0-rc0",
+        "botbuilder-testing": "~4.15.0-rc0",
+        "botbuilder-lg": "~4.15.0-rc0",
         "dotenv": "^8.2.0",
         "restify": "~8.5.1"
     },
diff --git a/samples/javascript_nodejs/language-generation/20.custom-functions/.env b/samples/javascript_nodejs/language-generation/20.custom-functions/.env
index a695b3bf05..cdabaa4d21 100644
--- a/samples/javascript_nodejs/language-generation/20.custom-functions/.env
+++ b/samples/javascript_nodejs/language-generation/20.custom-functions/.env
@@ -1,2 +1,4 @@
+MicrosoftAppType=
 MicrosoftAppId=
 MicrosoftAppPassword=
+MicrosoftAppTenantId=
diff --git a/samples/javascript_nodejs/language-generation/20.custom-functions/index.js b/samples/javascript_nodejs/language-generation/20.custom-functions/index.js
index 38164c38d0..2c743400e5 100644
--- a/samples/javascript_nodejs/language-generation/20.custom-functions/index.js
+++ b/samples/javascript_nodejs/language-generation/20.custom-functions/index.js
@@ -24,7 +24,9 @@ const { EchoBot } = require('./bot');
 
 const credentialsFactory = new ConfigurationServiceClientCredentialFactory({
     MicrosoftAppId: process.env.MicrosoftAppId,
-    MicrosoftAppPassword: process.env.MicrosoftAppPassword
+    MicrosoftAppPassword: process.env.MicrosoftAppPassword,
+    MicrosoftAppType: process.env.MicrosoftAppType,
+    MicrosoftAppTenantId: process.env.MicrosoftAppTenantId
 });
 
 const botFrameworkAuthentication = createBotFrameworkAuthenticationFromConfiguration(null, credentialsFactory);
diff --git a/samples/javascript_nodejs/language-generation/20.custom-functions/package.json b/samples/javascript_nodejs/language-generation/20.custom-functions/package.json
index 91af417bb8..a2ebfa4efb 100644
--- a/samples/javascript_nodejs/language-generation/20.custom-functions/package.json
+++ b/samples/javascript_nodejs/language-generation/20.custom-functions/package.json
@@ -16,9 +16,9 @@
         "url": "https://github.com"
     },
     "dependencies": {
-        "botbuilder": "~4.14.0",
-        "botbuilder-lg": "~4.14.0",
-        "adaptive-expressions": "~4.14.0",
+        "botbuilder": "~4.15.0-rc0",
+        "botbuilder-lg": "~4.15.0-rc0",
+        "adaptive-expressions": "~4.15.0-rc0",
         "dotenv": "^8.2.0",
         "restify": "~8.5.1"
     },