diff --git a/extension/package-lock.json b/extension/package-lock.json
index 8486f764ee..2d885cc49f 100644
--- a/extension/package-lock.json
+++ b/extension/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "go",
-  "version": "0.48.0-dev",
+  "version": "0.48.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "go",
-      "version": "0.48.0-dev",
+      "version": "0.48.0",
       "license": "MIT",
       "dependencies": {
         "diff": "4.0.2",
diff --git a/extension/package.json b/extension/package.json
index 0d82957105..27f705f17b 100644
--- a/extension/package.json
+++ b/extension/package.json
@@ -1,7 +1,7 @@
 {
   "name": "go",
   "displayName": "Go",
-  "version": "0.48.0-dev",
+  "version": "0.48.0",
   "publisher": "golang",
   "description": "Rich Go language support for Visual Studio Code",
   "author": {
diff --git a/extension/src/goDebugConfiguration.ts b/extension/src/goDebugConfiguration.ts
index 94c7e12d9c..243a4a29a3 100644
--- a/extension/src/goDebugConfiguration.ts
+++ b/extension/src/goDebugConfiguration.ts
@@ -387,9 +387,11 @@ export class GoDebugConfigurationProvider implements vscode.DebugConfigurationPr
 	/**
 	 * Calls `dlv substitute-path-guess-helper` to get a set of parameters used by Delve to guess the substitutePath configuration after also examining the executable.
 	 *
+	 * Exported for testing.
+	 *
 	 * See https://github.com/go-delve/delve/blob/d5fb3bee427202f0d4b1683bf743bfd2adb41757/service/debugger/debugger.go#L2466
 	 */
-	private async guessSubstitutePath(): Promise<object | null> {
+	public async guessSubstitutePath(): Promise<object | null> {
 		return new Promise((resolve) => {
 			const child = spawn(getBinPath('dlv'), ['substitute-path-guess-helper']);
 			let stdoutData = '';
diff --git a/extension/test/integration/goDebugConfiguration.test.ts b/extension/test/integration/goDebugConfiguration.test.ts
index 877e72cf01..6141764f0c 100644
--- a/extension/test/integration/goDebugConfiguration.test.ts
+++ b/extension/test/integration/goDebugConfiguration.test.ts
@@ -979,7 +979,7 @@ suite('Debug Configuration Default DebugAdapter', () => {
 		assert.strictEqual(resolvedConfig['debugAdapter'], 'dlv-dap');
 	});
 
-	test("default debugAdapter for remote mode should be 'legacy' when not in Preview mode", async () => {
+	test('default debugAdapter for remote mode should be determined by `dlv substitute-path-guess-helper`', async () => {
 		const config = {
 			name: 'Attach',
 			type: 'go',
@@ -989,9 +989,14 @@ suite('Debug Configuration Default DebugAdapter', () => {
 			cwd: '/path'
 		};
 
-		const want = extensionInfo.isPreview ? 'dlv-dap' : 'legacy';
 		await debugConfigProvider.resolveDebugConfiguration(undefined, config);
 		const resolvedConfig = config as any;
+
+		const substitutePathGuess = await debugConfigProvider.guessSubstitutePath();
+		let want = 'dlv-dap';
+		if (substitutePathGuess === null) {
+			want = 'legacy';
+		}
 		assert.strictEqual(resolvedConfig['debugAdapter'], want);
 	});