diff --git a/package.json b/package.json
index 0a5f49973f..4c8c018a54 100644
--- a/package.json
+++ b/package.json
@@ -601,7 +601,7 @@
 				"githubPullRequests.experimental.stacks": {
 					"type": "boolean",
 					"description": "%githubPullRequests.experimental.stacks.description%",
-					"default": false,
+					"default": true,
 					"included": false
 				},
 				"githubPullRequests.codingAgent.enabled": {
diff --git a/src/common/settingsUtils.ts b/src/common/settingsUtils.ts
index 80f0819046..f835e7ef73 100644
--- a/src/common/settingsUtils.ts
+++ b/src/common/settingsUtils.ts
@@ -9,7 +9,7 @@ import { commands } from './executeCommands';
 import { CHAT_SETTINGS_NAMESPACE, DISABLE_AI_FEATURES, EXPERIMENTAL_STACKS, PR_SETTINGS_NAMESPACE, QUERIES, USE_REVIEW_MODE } from './settingKeys';
 
 export function areStacksEnabled(): boolean {
-	return vscode.workspace.getConfiguration(PR_SETTINGS_NAMESPACE).get<boolean>(EXPERIMENTAL_STACKS, false);
+	return vscode.workspace.getConfiguration(PR_SETTINGS_NAMESPACE).get<boolean>(EXPERIMENTAL_STACKS, true);
 }
 
 export function assertStacksEnabled(): void {