diff --git a/wp-includes/PHPMailer/PHPMailer.php b/wp-includes/PHPMailer/PHPMailer.php
index 865f3a4e14..0a8711f489 100644
--- a/wp-includes/PHPMailer/PHPMailer.php
+++ b/wp-includes/PHPMailer/PHPMailer.php
@@ -768,7 +768,7 @@ class PHPMailer
      *
      * @var string
      */
-    const VERSION = '6.11.0';
+    const VERSION = '6.11.1';
 
     /**
      * Error severity: message only, continue processing.
@@ -1241,15 +1241,15 @@ class PHPMailer
      *
      * @see https://www.andrew.cmu.edu/user/agreen1/testing/mrbs/web/Mail/RFC822.php A more careful implementation
      *
-     * @param string      $addrstr       The address list string
-     * @param string|null $deprecatedArg Deprecated argument since 6.11.0.
-     * @param string      $charset       The charset to use when decoding the address list string.
+     * @param string $addrstr The address list string
+     * @param null   $useimap Deprecated argument since 6.11.0.
+     * @param string $charset The charset to use when decoding the address list string.
      *
      * @return array
      */
-    public static function parseAddresses($addrstr, $deprecatedArg = null, $charset = self::CHARSET_ISO88591)
+    public static function parseAddresses($addrstr, $useimap = null, $charset = self::CHARSET_ISO88591)
     {
-        if ($deprecatedArg !== null) {
+        if ($useimap !== null) {
             trigger_error(self::lang('deprecated_argument'), E_USER_DEPRECATED);
         }
         $addresses = [];
@@ -2482,7 +2482,7 @@ class PHPMailer
             'no_smtputf8' => 'Server does not support SMTPUTF8 needed to send to Unicode addresses',
             'imap_recommended' => 'Using simplified address parser is not recommended. ' .
                 'Install the PHP IMAP extension for full RFC822 parsing.',
-            'deprecated_argument' => 'Argument $deprecatedArg is deprecated',
+            'deprecated_argument' => 'Argument $useimap is deprecated',
         ];
         if (empty($lang_path)) {
             //Calculate an absolute path so it can work if CWD is not here
diff --git a/wp-includes/PHPMailer/POP3.php b/wp-includes/PHPMailer/POP3.php
index d45b4ad78d..2c2cf78938 100644
--- a/wp-includes/PHPMailer/POP3.php
+++ b/wp-includes/PHPMailer/POP3.php
@@ -46,7 +46,7 @@ class POP3
      *
      * @var string
      */
-    const VERSION = '6.11.0';
+    const VERSION = '6.11.1';
 
     /**
      * Default POP3 port number.
diff --git a/wp-includes/PHPMailer/SMTP.php b/wp-includes/PHPMailer/SMTP.php
index c448a0aea9..3772c94ad7 100644
--- a/wp-includes/PHPMailer/SMTP.php
+++ b/wp-includes/PHPMailer/SMTP.php
@@ -35,7 +35,7 @@ class SMTP
      *
      * @var string
      */
-    const VERSION = '6.11.0';
+    const VERSION = '6.11.1';
 
     /**
      * SMTP line break constant.
diff --git a/wp-includes/class-wp-phpmailer.php b/wp-includes/class-wp-phpmailer.php
index 24d59c113c..34747d295d 100644
--- a/wp-includes/class-wp-phpmailer.php
+++ b/wp-includes/class-wp-phpmailer.php
@@ -41,9 +41,7 @@ class WP_PHPMailer extends PHPMailer\PHPMailer\PHPMailer {
 			'authenticate'         => __( 'SMTP Error: Could not authenticate.' ),
 			'buggy_php'            => sprintf(
 				/* translators: 1: mail.add_x_header. 2: php.ini */
-				__(
-					'Your version of PHP is affected by a bug that may result in corrupted messages. To fix it, switch to sending using SMTP, disable the %1$s option in your %2$s, or switch to MacOS or Linux, or upgrade your PHP version.'
-				),
+				__( 'Your version of PHP is affected by a bug that may result in corrupted messages. To fix it, switch to sending using SMTP, disable the %1$s option in your %2$s, or switch to MacOS or Linux, or upgrade your PHP version.' ),
 				'mail.add_x_header',
 				'php.ini'
 			),
@@ -90,11 +88,8 @@ class WP_PHPMailer extends PHPMailer\PHPMailer\PHPMailer {
 			'variable_set'         => __( 'Cannot set or reset variable: ' ),
 			'no_smtputf8'          => __( 'Server does not support SMTPUTF8 needed to send to Unicode addresses' ),
 			'imap_recommended'     => __( 'Using simplified address parser is not recommended. Install the PHP IMAP extension for full RFC822 parsing.' ),
-			'deprecated_argument'  => sprintf(
-				/* translators: %s: $deprecatedArg */
-				__( 'Argument %s is deprecated' ),
-				'$deprecatedArg'
-			),
+			/* translators: %s: $useimap */
+			'deprecated_argument'  => sprintf( __( 'Argument %s is deprecated' ), '$useimap' ),
 		);
 
 		return true;
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 82fbd8245b..e378791561 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.9-alpha-60887';
+$wp_version = '6.9-alpha-60888';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.