diff --git a/files/externallib.php b/files/externallib.php
index fdf63c548b190..19cba7ff1104e 100644
--- a/files/externallib.php
+++ b/files/externallib.php
@@ -74,6 +74,7 @@ public static function get_files_parameters() {
      * @param string $contextlevel The context level for the file location.
      * @param int $instanceid The instance id for where the file is located.
      * @return array
+     * @since Moodle 2.9 Returns additional fields (timecreated, filesize, author, license)
      * @since Moodle 2.2
      */
     public static function get_files($contextid, $component, $filearea, $itemid, $filepath, $filename, $modified = null,
@@ -139,6 +140,7 @@ public static function get_files($contextid, $component, $filearea, $itemid, $fi
 
                 $params = $child->get_params();
                 $timemodified = $child->get_timemodified();
+                $timecreated = $child->get_timecreated();
 
                 if ($child->is_directory()) {
                     if ((is_null($modified)) or ($modified < $timemodified)) {
@@ -151,7 +153,11 @@ public static function get_files($contextid, $component, $filearea, $itemid, $fi
                             'filename'  => $child->get_visible_name(),
                             'url'       => null,
                             'isdir'     => true,
-                            'timemodified' => $timemodified
+                            'timemodified' => $timemodified,
+                            'timecreated' => $timecreated,
+                            'filesize' => 0,
+                            'author' => null,
+                            'license' => null
                            );
                            $list[] = $node;
                     }
@@ -166,7 +172,11 @@ public static function get_files($contextid, $component, $filearea, $itemid, $fi
                             'filename'  => $child->get_visible_name(),
                             'url'       => $child->get_url(),
                             'isdir'     => false,
-                            'timemodified' => $timemodified
+                            'timemodified' => $timemodified,
+                            'timecreated' => $timecreated,
+                            'filesize' => $child->get_filesize(),
+                            'author' => $child->get_author(),
+                            'license' => $child->get_license()
                         );
                            $list[] = $node;
                     }
@@ -181,6 +191,7 @@ public static function get_files($contextid, $component, $filearea, $itemid, $fi
      * Returns description of get_files returns
      *
      * @return external_single_structure
+     * @since Moodle 2.9 Returns additional fields for files (timecreated, filesize, author, license)
      * @since Moodle 2.2
      */
     public static function get_files_returns() {
@@ -210,6 +221,10 @@ public static function get_files_returns() {
                             'isdir'    => new external_value(PARAM_BOOL, ''),
                             'url'      => new external_value(PARAM_TEXT, ''),
                             'timemodified' => new external_value(PARAM_INT, ''),
+                            'timecreated' => new external_value(PARAM_INT, 'Time created', VALUE_OPTIONAL),
+                            'filesize' => new external_value(PARAM_INT, 'File size', VALUE_OPTIONAL),
+                            'author' => new external_value(PARAM_TEXT, 'File owner', VALUE_OPTIONAL),
+                            'license' => new external_value(PARAM_TEXT, 'File license', VALUE_OPTIONAL),
                         )
                     )
                 )
diff --git a/files/tests/externallib_test.php b/files/tests/externallib_test.php
index 3922c6494b6a3..b49ff72f63dd2 100644
--- a/files/tests/externallib_test.php
+++ b/files/tests/externallib_test.php
@@ -244,6 +244,8 @@ public function test_get_files() {
         // Create a file from the string that we made earlier.
         $file = $fs->create_file_from_string($filerecord, $filecontent);
         $timemodified = $file->get_timemodified();
+        $timecreated = $file->get_timemodified();
+        $filesize = $file->get_filesize();
 
         // Use the web service function to return the information about the file that we just uploaded.
         // The first time is with a valid context ID.
@@ -293,7 +295,12 @@ public function test_get_files() {
                                         'filename' => 'Simple4.txt',
                                         'url' => 'http://www.example.com/moodle/pluginfile.php/'.$context->id.'/mod_data/content/'.$itemid.'/Simple4.txt',
                                         'isdir' => false,
-                                        'timemodified' => $timemodified);
+                                        'timemodified' => $timemodified,
+                                        'timecreated' => $timecreated,
+                                        'filesize' => $filesize,
+                                        'author' => null,
+                                        'license' => null
+                                        );
         // Make sure that they are the same.
         $this->assertEquals($testdata, $testfilelisting);
 
diff --git a/lib/upgrade.txt b/lib/upgrade.txt
index e2451da66205a..0d652cf8c94ae 100644
--- a/lib/upgrade.txt
+++ b/lib/upgrade.txt
@@ -15,6 +15,7 @@ information provided here is intended especially for developers.
 * For 3rd party plugin specific environment.xml files, it's now possible to specify version independent checks by using the
   <PLUGIN name="component_name"> tag instead of the version dependent <MOODLE version="x.y"> one. If the PLUGIN tag is used any
   Moodle specific tags will be ignored.
+* External function core_files_get_files returns additional fields (timecreated, filesize, author, license)
 
 === 2.8 ===