diff --git a/WordPress/Sniffs/WP/DeprecatedClassesSniff.php b/WordPress/Sniffs/WP/DeprecatedClassesSniff.php
index 4c3704346..dc512c203 100644
--- a/WordPress/Sniffs/WP/DeprecatedClassesSniff.php
+++ b/WordPress/Sniffs/WP/DeprecatedClassesSniff.php
@@ -41,7 +41,7 @@ final class DeprecatedClassesSniff extends AbstractClassRestrictionsSniff {
 	 *
 	 * Version numbers should be fully qualified.
 	 *
-	 * Last update: July 2023 for WP 6.3 at https://github.com/WordPress/wordpress-develop/commit/6281ce432c50345a57768bf53854d9b65b6cdd52
+	 * {@internal To be updated after every major release. Last updated for WordPress 6.5-RC3.}
 	 *
 	 * @var array
 	 */
@@ -84,6 +84,16 @@ final class DeprecatedClassesSniff extends AbstractClassRestrictionsSniff {
 			'alt'     => 'The PHP native JSON extension',
 			'version' => '5.3.0',
 		),
+
+		// WP 6.4.0.
+		'WP_Http_Curl' => array(
+			'alt'     => 'WP_Http',
+			'version' => '6.4.0',
+		),
+		'WP_Http_Streams' => array(
+			'alt'     => 'WP_Http',
+			'version' => '6.4.0',
+		),
 	);
 
 	/**
diff --git a/WordPress/Tests/WP/DeprecatedClassesUnitTest.inc b/WordPress/Tests/WP/DeprecatedClassesUnitTest.inc
index 7f7f38ef6..b0bb1d4df 100644
--- a/WordPress/Tests/WP/DeprecatedClassesUnitTest.inc
+++ b/WordPress/Tests/WP/DeprecatedClassesUnitTest.inc
@@ -23,3 +23,10 @@ $json = new Services_JSON;
 $json = new Services_JSON_Error;
 class Prefix_Menu_section extends WP_Privacy_Data_Export_Requests_Table {}
 WP_Privacy_Data_Removal_Requests_Table::foo();
+
+/*
+ * Warning
+ */
+/* ============ WP 6.4 ============ */
+WP_Http_Curl::do_something();
+$streams = new WP_Http_Streams();
diff --git a/WordPress/Tests/WP/DeprecatedClassesUnitTest.php b/WordPress/Tests/WP/DeprecatedClassesUnitTest.php
index 0b82daff6..a0d2a7b41 100644
--- a/WordPress/Tests/WP/DeprecatedClassesUnitTest.php
+++ b/WordPress/Tests/WP/DeprecatedClassesUnitTest.php
@@ -43,6 +43,9 @@ public function getErrorList() {
 	 * @return array<int, int> Key is the line number, value is the number of expected warnings.
 	 */
 	public function getWarningList() {
-		return array();
+		return array(
+			31 => 1,
+			32 => 1,
+		);
 	}
 }