CodeIgniter 3.1.1 Released

After the upgrade to the 3.1.1 version a controller named "log" does not work anymore.  The route gives a 404.

PHP Code:

$route['log/(:num)'] = 'log/log/$1'; 


the code in log :

PHP Code:

// default handler
public function index($location_id = false) {
    $this->log($location_id);
}

public function log($location_id = false) {
// code
} 


I'm stunned. Ill report back when I have found a solution. (PHP 7.0.12)

// issue resolved updating to 3.1.2
There where changes in b/system/core/Log.php from 3.1.1 to 3.1.2 this seemed to be related to this issue. 3.1.2 seems to work fine.