diff --git a/ChangeLog b/ChangeLog
index 378f73df77..e31419ef01 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -99,6 +99,7 @@ phpMyAdmin - ChangeLog
 - issue #13045 Properly escape MIME transformatoin names
 - issue #13028 Always show 100% in font selector
 - issue #13047 Fix query simulating for more servers
+- issue #12846 Fix new version check for sites with wrongly configured curl
 
 4.6.6 (2017-01-23)
 - issue #12759 Fix Notice regarding 'Undefined index: old_usergroup'
diff --git a/libraries/Config.php b/libraries/Config.php
index 623bf9506c..44dfb75a7c 100644
--- a/libraries/Config.php
+++ b/libraries/Config.php
@@ -606,8 +606,7 @@ class Config
         ) {
             $is_remote_commit = $_SESSION['PMA_VERSION_REMOTECOMMIT_' . $hash];
         } else {
-            $link = 'https://api.github.com/repos/phpmyadmin/phpmyadmin/git/commits/'
-                . $hash;
+            $link = 'https://www.phpmyadmin.net/api/commit/' . $hash . '/';
             $is_found = Util::httpRequest($link, "GET");
             switch($is_found) {
             case false:
@@ -635,8 +634,7 @@ class Config
             if (isset($_SESSION['PMA_VERSION_REMOTEBRANCH_' . $hash])) {
                 $is_remote_branch = $_SESSION['PMA_VERSION_REMOTEBRANCH_' . $hash];
             } else {
-                $link = 'https://api.github.com/repos/phpmyadmin/phpmyadmin'
-                    . '/git/trees/' . $branch;
+                $link = 'https://www.phpmyadmin.net/api/tree/' . $branch . '/';
                 $is_found = Util::httpRequest($link, "GET", true);
                 switch($is_found) {
                 case true:
diff --git a/libraries/Util.php b/libraries/Util.php
index 5c3a5fa229..c6e04c64b2 100644
--- a/libraries/Util.php
+++ b/libraries/Util.php
@@ -4150,30 +4150,6 @@ class Util
         }
         return $context;
     }
-    /**
-     * Updates an existing curl as necessary
-     *
-     * @param resource $curl_handle A curl_handle resource
-     *                              created by curl_init which should
-     *                              have several options set
-     *
-     * @return resource curl_handle with updated options
-     */
-    public static function configureCurl($curl_handle)
-    {
-        if (strlen($GLOBALS['cfg']['ProxyUrl']) > 0) {
-            curl_setopt($curl_handle, CURLOPT_PROXY, $GLOBALS['cfg']['ProxyUrl']);
-            if (strlen($GLOBALS['cfg']['ProxyUser']) > 0) {
-                curl_setopt(
-                    $curl_handle,
-                    CURLOPT_PROXYUSERPWD,
-                    $GLOBALS['cfg']['ProxyUser'] . ':' . $GLOBALS['cfg']['ProxyPass']
-                );
-            }
-        }
-        curl_setopt($curl_handle, CURLOPT_USERAGENT, 'phpMyAdmin/' . PMA_VERSION);
-        return $curl_handle;
-    }
 
     /**
      * Add fractional seconds to time, datetime and timestamp strings.
@@ -4752,7 +4728,17 @@ class Util
         if ($curl_handle === false) {
             return null;
         }
-        $curl_handle = Util::configureCurl($curl_handle);
+        if (strlen($GLOBALS['cfg']['ProxyUrl']) > 0) {
+            curl_setopt($curl_handle, CURLOPT_PROXY, $GLOBALS['cfg']['ProxyUrl']);
+            if (strlen($GLOBALS['cfg']['ProxyUser']) > 0) {
+                curl_setopt(
+                    $curl_handle,
+                    CURLOPT_PROXYUSERPWD,
+                    $GLOBALS['cfg']['ProxyUser'] . ':' . $GLOBALS['cfg']['ProxyPass']
+                );
+            }
+        }
+        curl_setopt($curl_handle, CURLOPT_USERAGENT, 'phpMyAdmin/' . PMA_VERSION);
 
         if ($method != "GET") {
             curl_setopt($curl_handle, CURLOPT_CUSTOMREQUEST, $method);
@@ -4768,6 +4754,14 @@ class Util
         curl_setopt($curl_handle, CURLOPT_SSL_VERIFYHOST, '2');
         curl_setopt($curl_handle, CURLOPT_SSL_VERIFYPEER, '1');
 
+        /**
+         * Configure ISRG Root X1 to be able to verify Let's Encrypt SSL
+         * certificates even without properly configured curl in PHP.
+         *
+         * See https://letsencrypt.org/certificates/
+         */
+        curl_setopt($curl_handle, CURLOPT_CAINFO, dirname(__file__) . '/' . 'isrgrootx1.pem');
+
         curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER,true);
         curl_setopt($curl_handle, CURLOPT_FOLLOWLOCATION, 0);
         curl_setopt($curl_handle, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
diff --git a/libraries/isrgrootx1.pem b/libraries/isrgrootx1.pem
new file mode 100644
index 0000000000..9548dc1bf6
--- /dev/null
+++ b/libraries/isrgrootx1.pem
@@ -0,0 +1,31 @@
+-----BEGIN CERTIFICATE-----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=
+-----END CERTIFICATE-----