diff --git a/extensions/big-data-cluster/src/bigDataCluster/dialog/addControllerDialog.ts b/extensions/big-data-cluster/src/bigDataCluster/dialog/addControllerDialog.ts
index 7f32d100ddf8..1278613a6b19 100644
--- a/extensions/big-data-cluster/src/bigDataCluster/dialog/addControllerDialog.ts
+++ b/extensions/big-data-cluster/src/bigDataCluster/dialog/addControllerDialog.ts
@@ -119,7 +119,7 @@ export class AddControllerDialog {
 	}
 
 	private createDialog(): void {
-		this.dialog = azdata.window.createModelViewDialog(localize('textAddNewController', "Add New Controller"));
+		this.dialog = azdata.window.createModelViewDialog(localize('textAddNewController', "Add New Controller (preview)"));
 		this.dialog.registerContent(async view => {
 			this.uiModelBuilder = view.modelBuilder;
 
diff --git a/extensions/big-data-cluster/src/bigDataCluster/dialog/bdcDashboard.ts b/extensions/big-data-cluster/src/bigDataCluster/dialog/bdcDashboard.ts
index 756869719cb5..d3389d92f111 100644
--- a/extensions/big-data-cluster/src/bigDataCluster/dialog/bdcDashboard.ts
+++ b/extensions/big-data-cluster/src/bigDataCluster/dialog/bdcDashboard.ts
@@ -127,7 +127,7 @@ export class BdcDashboard extends BdcDashboardPage {
 
 			// Overview nav item - this will be the initial page
 			const overviewNavItemDiv = modelView.modelBuilder.divContainer().withLayout({ width: navWidth, height: '30px' }).withProperties({ clickable: true }).component();
-			const overviewNavItemText = modelView.modelBuilder.text().withProperties({ value: localize('bdc.dashboard.overviewNavTitle', "Big data cluster overview") }).component();
+			const overviewNavItemText = modelView.modelBuilder.text().withProperties({ value: localize('bdc.dashboard.overviewNavTitle', "Big Data Cluster overview") }).component();
 			overviewNavItemText.updateCssStyles(selectedTabCss);
 			overviewNavItemDiv.addItem(overviewNavItemText, { CSSStyles: { 'user-select': 'text' } });
 			this.overviewPage = new BdcDashboardOverviewPage(this, this.model);
diff --git a/extensions/big-data-cluster/src/bigDataCluster/dialog/connectControllerDialog.ts b/extensions/big-data-cluster/src/bigDataCluster/dialog/connectControllerDialog.ts
index 1251baaa7916..4013b2240c5e 100644
--- a/extensions/big-data-cluster/src/bigDataCluster/dialog/connectControllerDialog.ts
+++ b/extensions/big-data-cluster/src/bigDataCluster/dialog/connectControllerDialog.ts
@@ -12,7 +12,7 @@ const localize = nls.loadMessageBundle();
 
 export class ConnectControllerDialog extends HdfsDialogBase<HdfsDialogProperties, ClusterController> {
 	constructor(model: ConnectControllerModel) {
-		super(localize('connectController.dialog.title', "Connect to Controller"), model);
+		super(localize('connectController.dialog.title', "Connect to Controller (preview)"), model);
 	}
 
 	protected getMainSectionComponents(): (azdata.FormComponentGroup | azdata.FormComponent)[] {
diff --git a/extensions/big-data-cluster/src/bigDataCluster/dialog/mountHdfsDialog.ts b/extensions/big-data-cluster/src/bigDataCluster/dialog/mountHdfsDialog.ts
index ac76d90cf6ab..ed6e5bd596f6 100644
--- a/extensions/big-data-cluster/src/bigDataCluster/dialog/mountHdfsDialog.ts
+++ b/extensions/big-data-cluster/src/bigDataCluster/dialog/mountHdfsDialog.ts
@@ -149,7 +149,7 @@ export class MountHdfsDialog extends HdfsDialogBase<MountHdfsProperties, void> {
 	private credentialsInputBox: azdata.InputBoxComponent;
 
 	constructor(model: MountHdfsDialogModel) {
-		super(localize('mount.dialog.title', "Mount HDFS Folder"), model);
+		super(localize('mount.dialog.title', "Mount HDFS Folder (preview)"), model);
 	}
 
 	protected getMainSectionComponents(): (azdata.FormComponentGroup | azdata.FormComponent)[] {
diff --git a/extensions/big-data-cluster/src/extension.ts b/extensions/big-data-cluster/src/extension.ts
index 39aaf998b315..f4f114b905d2 100644
--- a/extensions/big-data-cluster/src/extension.ts
+++ b/extensions/big-data-cluster/src/extension.ts
@@ -61,7 +61,7 @@ function registerCommands(context: vscode.ExtensionContext, treeDataProvider: Co
 	});
 
 	vscode.commands.registerCommand(ManageControllerCommand, async (info: ControllerNode | BdcDashboardOptions, addOrUpdateController: boolean = false) => {
-		const title: string = `${localize('bdc.dashboard.title', "Big Data Cluster Dashboard -")} ${ControllerNode.toIpAndPort(info.url)}`;
+		const title: string = `${localize('bdc.dashboard.title', "Big Data Cluster Dashboard (preview) -")} ${ControllerNode.toIpAndPort(info.url)}`;
 		if (addOrUpdateController) {
 			// The info may be wrong, but if it is then we'll prompt to reconnect when the dashboard is opened
 			// and update with the correct info then
diff --git a/extensions/mssql/src/localizedConstants.ts b/extensions/mssql/src/localizedConstants.ts
index 08a49b77548a..9f107ca2445b 100644
--- a/extensions/mssql/src/localizedConstants.ts
+++ b/extensions/mssql/src/localizedConstants.ts
@@ -11,7 +11,7 @@ export const msgMissingNodeContext = localize('msgMissingNodeContext', "Node Com
 
 // HDFS Manage Access Dialog Constants ////////////////////////////////////
 
-export const manageAccessTitle = localize('mssql.manageAccessTitle', "Manage Access");
+export const manageAccessTitle = localize('mssql.manageAccessTitle', "Manage Access (preview)");
 export const locationTitle = localize('mssql.locationTitle', "Location : ");
 export const permissionsHeader = localize('mssql.permissionsTitle', "Permissions");
 export const ownerPostfix = localize('mssql.ownerPostfix', " - Owner");
diff --git a/extensions/mssql/src/sparkFeature/dialog/sparkJobSubmission/sparkJobSubmissionDialog.ts b/extensions/mssql/src/sparkFeature/dialog/sparkJobSubmission/sparkJobSubmissionDialog.ts
index bb159e088b7c..37c17fbdb999 100644
--- a/extensions/mssql/src/sparkFeature/dialog/sparkJobSubmission/sparkJobSubmissionDialog.ts
+++ b/extensions/mssql/src/sparkFeature/dialog/sparkJobSubmission/sparkJobSubmissionDialog.ts
@@ -41,7 +41,7 @@ export class SparkJobSubmissionDialog {
 	}
 
 	public async openDialog(path?: string): Promise<void> {
-		this._dialog = this.apiWrapper.createDialog(localize('sparkJobSubmission.DialogTitleNewJob', "New Job"));
+		this._dialog = this.apiWrapper.createDialog(localize('sparkJobSubmission.DialogTitleNewJob', "New Job (preview)"));
 
 		this._dataModel = new SparkJobSubmissionModel(this.sqlClusterConnection, this._dialog, this.appContext);