diff --git a/src/vs/editor/common/languages.ts b/src/vs/editor/common/languages.ts
index 48b53b97b166b..fd06b0591e776 100644
--- a/src/vs/editor/common/languages.ts
+++ b/src/vs/editor/common/languages.ts
@@ -1658,6 +1658,14 @@ export enum CommentMode {
 	Preview = 1
 }
 
+/**
+ * @internal
+ */
+export enum CommentState {
+	Published = 0,
+	Draft = 1
+}
+
 /**
  * @internal
  */
diff --git a/src/vs/workbench/api/common/extHost.api.impl.ts b/src/vs/workbench/api/common/extHost.api.impl.ts
index d6b2c3a4fffc7..0ca0b95ca9ca2 100644
--- a/src/vs/workbench/api/common/extHost.api.impl.ts
+++ b/src/vs/workbench/api/common/extHost.api.impl.ts
@@ -1285,6 +1285,7 @@ export function createApiFactoryAndRegisterActors(accessor: ServicesAccessor): I
 			ColorPresentation: extHostTypes.ColorPresentation,
 			ColorThemeKind: extHostTypes.ColorThemeKind,
 			CommentMode: extHostTypes.CommentMode,
+			CommentState: extHostTypes.CommentState,
 			CommentThreadCollapsibleState: extHostTypes.CommentThreadCollapsibleState,
 			CommentThreadState: extHostTypes.CommentThreadState,
 			CompletionItem: extHostTypes.CompletionItem,
diff --git a/src/vs/workbench/api/common/extHost.protocol.ts b/src/vs/workbench/api/common/extHost.protocol.ts
index bae88633ffbc5..b42dbbd126744 100644
--- a/src/vs/workbench/api/common/extHost.protocol.ts
+++ b/src/vs/workbench/api/common/extHost.protocol.ts
@@ -119,6 +119,7 @@ export interface CommentChanges {
 	readonly commentReactions?: languages.CommentReaction[];
 	readonly label?: string;
 	readonly mode?: languages.CommentMode;
+	readonly state?: languages.CommentState;
 	readonly timestamp?: string;
 }
 
diff --git a/src/vs/workbench/api/common/extHostComments.ts b/src/vs/workbench/api/common/extHostComments.ts
index ffa1ff11e42dd..13f02e08b35b7 100644
--- a/src/vs/workbench/api/common/extHostComments.ts
+++ b/src/vs/workbench/api/common/extHostComments.ts
@@ -491,7 +491,7 @@ export function createExtHostComments(mainContext: IMainContext, commands: ExtHo
 			}
 			if (modified('comments')) {
 				formattedModifications.comments =
-					this._comments.map(cmt => convertToDTOComment(this, cmt, this._commentsMap));
+					this._comments.map(cmt => convertToDTOComment(this, cmt, this._commentsMap, this.extensionDescription));
 			}
 			if (modified('collapsibleState')) {
 				formattedModifications.collapseState = convertToCollapsibleState(this._collapseState);
@@ -666,13 +666,17 @@ export function createExtHostComments(mainContext: IMainContext, commands: ExtHo
 		}
 	}
 
-	function convertToDTOComment(thread: ExtHostCommentThread, vscodeComment: vscode.Comment, commentsMap: Map<vscode.Comment, number>): CommentChanges {
+	function convertToDTOComment(thread: ExtHostCommentThread, vscodeComment: vscode.Comment, commentsMap: Map<vscode.Comment, number>, extension: IExtensionDescription): CommentChanges {
 		let commentUniqueId = commentsMap.get(vscodeComment)!;
 		if (!commentUniqueId) {
 			commentUniqueId = ++thread.commentHandle;
 			commentsMap.set(vscodeComment, commentUniqueId);
 		}
 
+		if (vscodeComment.state !== undefined) {
+			checkProposedApiEnabled(extension, 'commentsDraftState');
+		}
+
 		return {
 			mode: vscodeComment.mode,
 			contextValue: vscodeComment.contextValue,
@@ -682,6 +686,7 @@ export function createExtHostComments(mainContext: IMainContext, commands: ExtHo
 			userIconPath: vscodeComment.author.iconPath,
 			label: vscodeComment.label,
 			commentReactions: vscodeComment.reactions ? vscodeComment.reactions.map(reaction => convertToReaction(reaction)) : undefined,
+			state: vscodeComment.state,
 			timestamp: vscodeComment.timestamp?.toJSON()
 		};
 	}
diff --git a/src/vs/workbench/api/common/extHostTypes.ts b/src/vs/workbench/api/common/extHostTypes.ts
index 3ea4a313f2aa0..b815f0039e236 100644
--- a/src/vs/workbench/api/common/extHostTypes.ts
+++ b/src/vs/workbench/api/common/extHostTypes.ts
@@ -3056,6 +3056,11 @@ export enum CommentMode {
 	Preview = 1
 }
 
+export enum CommentState {
+	Published = 0,
+	Draft = 1
+}
+
 export enum CommentThreadState {
 	Unresolved = 0,
 	Resolved = 1
diff --git a/src/vs/workbench/services/extensions/common/extensionsApiProposals.ts b/src/vs/workbench/services/extensions/common/extensionsApiProposals.ts
index 3aeb7803c862f..75d9aa53ecd1a 100644
--- a/src/vs/workbench/services/extensions/common/extensionsApiProposals.ts
+++ b/src/vs/workbench/services/extensions/common/extensionsApiProposals.ts
@@ -8,6 +8,7 @@
 export const allApiProposals = Object.freeze({
 	authSession: 'https://raw.githubusercontent.com/microsoft/vscode/main/src/vscode-dts/vscode.proposed.authSession.d.ts',
 	codiconDecoration: 'https://raw.githubusercontent.com/microsoft/vscode/main/src/vscode-dts/vscode.proposed.codiconDecoration.d.ts',
+	commentsDraftState: 'https://raw.githubusercontent.com/microsoft/vscode/main/src/vscode-dts/vscode.proposed.commentsDraftState.d.ts',
 	contribCommentEditorActionsMenu: 'https://raw.githubusercontent.com/microsoft/vscode/main/src/vscode-dts/vscode.proposed.contribCommentEditorActionsMenu.d.ts',
 	contribCommentPeekContext: 'https://raw.githubusercontent.com/microsoft/vscode/main/src/vscode-dts/vscode.proposed.contribCommentPeekContext.d.ts',
 	contribCommentThreadAdditionalMenu: 'https://raw.githubusercontent.com/microsoft/vscode/main/src/vscode-dts/vscode.proposed.contribCommentThreadAdditionalMenu.d.ts',
diff --git a/src/vscode-dts/vscode.proposed.commentsDraftState.d.ts b/src/vscode-dts/vscode.proposed.commentsDraftState.d.ts
new file mode 100644
index 0000000000000..ee41130910a09
--- /dev/null
+++ b/src/vscode-dts/vscode.proposed.commentsDraftState.d.ts
@@ -0,0 +1,18 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+declare module 'vscode' {
+
+	// https://github.com/microsoft/vscode/issues/171166
+
+	export enum CommentState {
+		Published = 0,
+		Draft = 1
+	}
+
+	export interface Comment {
+		state?: CommentState;
+	}
+}