You can do this yourself:
a) save the file "config.inc.php" ("\xampp\phpmyadmin")
b) delete all files in "\xampp\phpmyadmin"
c) extract the new phpMyAdmin into "\xampp\phpmyadmin"
d) replace the file "config.inc.php" ("\xampp\phpmyadmin") with the previous saved one
e) enable the PHP extension "mbstring" in "php.ini" ("\xampp\apache\bin"): extension=php_mbstring.dll
f) restart Apache
g) go to
http://localhost/phpmyadmin/ --> have fun