diff --git a/administrator/components/com_admin/script.php b/administrator/components/com_admin/script.php
index e226df074dfeb..1bce88ab71674 100644
--- a/administrator/components/com_admin/script.php
+++ b/administrator/components/com_admin/script.php
@@ -36,6 +36,63 @@ public function update($installer)
 		$this->updateDatabase();
 		$this->clearRadCache();
 		$this->updateAssets();
+		$this->clearStatsCache();
+	}
+
+	/**
+	 * Method to clear our stats plugin cache to ensure we get fresh data on Joomla Update
+	 *
+	 * @return  void
+	 * @since   3.5
+	 */
+	protected function clearStatsCache()
+	{
+		$db = JFactory::getDbo();
+
+		try
+		{
+			// Get the params for the stats plugin 
+			$params = $db->setQuery(
+				$db->getQuery(true)
+					->select($db->quoteName('params'))
+					->from($db->quoteName('#__extensions'))
+					->where($db->quoteName('type') . ' = ' . $db->quote('plugin'))
+					->where($db->quoteName('folder') . ' = ' . $db->quote('system'))
+					->where($db->quoteName('element') . ' = ' . $db->quote('stats'))
+			)->loadResult();
+		}
+		catch (Exception $e)
+		{
+			echo JText::sprintf('JLIB_DATABASE_ERROR_FUNCTION_FAILED', $e->getCode(), $e->getMessage()) . '<br />';
+
+			return;
+		}
+
+		$params = json_decode($params, true);
+
+		// Reset the last run parameter
+		if (isset($params['lastrun']))
+		{
+			$params['lastrun'] = '';
+		}
+
+		$query = $db->getQuery(true)
+			->update($db->quoteName('#__extensions'))
+			->set($db->quoteName('params') . ' = ' . $db->quote($params))
+			->where($db->quoteName('type') . ' = ' . $db->quote('plugin'))
+			->where($db->quoteName('folder') . ' = ' . $db->quote('system'))
+			->where($db->quoteName('element') . ' = ' . $db->quote('stats'));
+
+		try
+		{
+			$db->setQuery($query)->execute();
+		}
+		catch (Exception $e)
+		{
+			echo JText::sprintf('JLIB_DATABASE_ERROR_FUNCTION_FAILED', $e->getCode(), $e->getMessage()) . '<br />';
+
+			return;
+		}
 	}
 
 	/**
diff --git a/administrator/components/com_admin/sql/updates/mysql/3.5.0-2015-11-05.sql b/administrator/components/com_admin/sql/updates/mysql/3.5.0-2015-11-05.sql
new file mode 100644
index 0000000000000..f9e57739917e1
--- /dev/null
+++ b/administrator/components/com_admin/sql/updates/mysql/3.5.0-2015-11-05.sql
@@ -0,0 +1,2 @@
+INSERT INTO `#__extensions` (`extension_id`, `name`, `type`, `element`, `folder`, `client_id`, `enabled`, `access`, `protected`, `manifest_cache`, `params`, `custom_data`, `system_data`, `checked_out`, `checked_out_time`, `ordering`, `state`) VALUES
+(454, 'plg_system_stats', 'plugin', 'stats', 'system', 0, 1, 1, 0, '', '', '', '', 0, '0000-00-00 00:00:00', 0, 0);
diff --git a/administrator/components/com_admin/sql/updates/postgresql/3.5.0-2015-11-05.sql b/administrator/components/com_admin/sql/updates/postgresql/3.5.0-2015-11-05.sql
new file mode 100644
index 0000000000000..b13c35987b576
--- /dev/null
+++ b/administrator/components/com_admin/sql/updates/postgresql/3.5.0-2015-11-05.sql
@@ -0,0 +1,2 @@
+INSERT INTO "#__extensions" ("extension_id", "name", "type", "element", "folder", "client_id", "enabled", "access", "protected", "manifest_cache", "params", "custom_data", "system_data", "checked_out", "checked_out_time", "ordering", "state") VALUES
+(454, 'plg_system_stats', 'plugin', 'stats', 'system', 0, 1, 1, 0, '', '', '', '', 0, '1970-01-01 00:00:00', 0, 0);
diff --git a/administrator/components/com_admin/sql/updates/sqlazure/3.5.0-2015-11-05.sql b/administrator/components/com_admin/sql/updates/sqlazure/3.5.0-2015-11-05.sql
new file mode 100644
index 0000000000000..6e44e38b360a2
--- /dev/null
+++ b/administrator/components/com_admin/sql/updates/sqlazure/3.5.0-2015-11-05.sql
@@ -0,0 +1,6 @@
+SET IDENTITY_INSERT [#__extensions]  ON;
+
+INSERT [#__extensions] ([extension_id], [name], [type], [element], [folder], [client_id], [enabled], [access], [protected], [manifest_cache], [params], [custom_data], [system_data], [checked_out], [checked_out_time], [ordering], [state])
+SELECT 454, 'plg_system_stats', 'plugin', 'stats', 'system', 0, 1, 1, 0, '', '', '', '', 0, '1900-01-01 00:00:00', 0, 0;
+
+SET IDENTITY_INSERT [#__extensions]  OFF;
diff --git a/administrator/language/en-GB/en-GB.plg_system_stats.ini b/administrator/language/en-GB/en-GB.plg_system_stats.ini
new file mode 100644
index 0000000000000..2bae1f168e753
--- /dev/null
+++ b/administrator/language/en-GB/en-GB.plg_system_stats.ini
@@ -0,0 +1,12 @@
+; Joomla! Project
+; Copyright (C) 2005 - 2015 Open Source Matters. All rights reserved.
+; License GNU General Public License version 2 or later; see LICENSE.txt, see LICENSE.php
+; Note : All ini files need to be saved as UTF-8
+
+PLG_SYSTEM_STATS="System - Joomla! Statistics"
+PLG_STATS_XML_DESCRIPTION="System Plugin that sends environment statistics to a server controlled by the Joomla! project for statistical analysis. Statistics sent include PHP version, CMS version, Database type and Database version."
+PLG_STATS_UNIQUE_ID_DESC="An identifier that allows us to count unique installs of the plugin. This is sent with the statistics back to the server."
+PLG_STATS_UNIQUE_ID_LABEL="Unique ID"
+PLG_STATS_URL_DESC="The official Joomla server url"
+PLG_STATS_URL_LABEL="Url"
+PLG_STATS_RESET_UNIQUE_ID="Reset Unique Id"
\ No newline at end of file
diff --git a/administrator/language/en-GB/en-GB.plg_system_stats.sys.ini b/administrator/language/en-GB/en-GB.plg_system_stats.sys.ini
new file mode 100644
index 0000000000000..ec3ad4ef5b78c
--- /dev/null
+++ b/administrator/language/en-GB/en-GB.plg_system_stats.sys.ini
@@ -0,0 +1,9 @@
+; Joomla! Project
+; Copyright (C) 2005 - 2015 Open Source Matters. All rights reserved.
+; License GNU General Public License version 2 or later; see LICENSE.txt, see LICENSE.php
+; Note : All ini files need to be saved as UTF-8
+
+PLG_SYSTEM_STATS="System - Joomla! Statistics"
+PLG_STATS_XML_DESCRIPTION="System Plugin that sends environment statistics to a server controlled by the Joomla! project for statistical analysis. Statistics sent include PHP version, CMS version, Database type and Database version."
+PLG_STATS_UNIQUE_ID_DESC="An identifier that allows us to count unique installs of the plugin. This is sent with the statistics back to the server."
+PLG_STATS_UNIQUE_ID_LABEL="Unique ID"
diff --git a/installation/sql/mysql/joomla.sql b/installation/sql/mysql/joomla.sql
index c4664b3393053..cf3c9f1a732f4 100644
--- a/installation/sql/mysql/joomla.sql
+++ b/installation/sql/mysql/joomla.sql
@@ -610,6 +610,7 @@ INSERT INTO `#__extensions` (`extension_id`, `name`, `type`, `element`, `folder`
 (451, 'plg_search_tags', 'plugin', 'tags', 'search', 0, 1, 1, 0, '', '{"search_limit":"50","show_tagged_items":"1"}', '', '', 0, '0000-00-00 00:00:00', 0, 0),
 (452, 'plg_system_updatenotification', 'plugin', 'updatenotification', 'system', 0, 1, 1, 0, '', '', '', '', 0, '0000-00-00 00:00:00', 0, 0),
 (453, 'plg_editors-xtd_module', 'plugin', 'module', 'editors-xtd', 0, 1, 1, 0, '', '', '', '', 0, '0000-00-00 00:00:00', 0, 0),
+(454, 'plg_system_stats', 'plugin', 'stats', 'system', 0, 1, 1, 0, '', '', '', '', 0, '0000-00-00 00:00:00', 0, 0),
 (503, 'beez3', 'template', 'beez3', '', 0, 1, 1, 0, '', '{"wrapperSmall":"53","wrapperLarge":"72","sitetitle":"","sitedescription":"","navposition":"center","templatecolor":"nature"}', '', '', 0, '0000-00-00 00:00:00', 0, 0),
 (504, 'hathor', 'template', 'hathor', '', 1, 1, 1, 0, '', '{"showSiteName":"0","colourChoice":"0","boldText":"0"}', '', '', 0, '0000-00-00 00:00:00', 0, 0),
 (506, 'protostar', 'template', 'protostar', '', 0, 1, 1, 0, '', '{"templateColor":"","logoFile":"","googleFont":"1","googleFontName":"Open+Sans","fluidContainer":"0"}', '', '', 0, '0000-00-00 00:00:00', 0, 0),
diff --git a/installation/sql/postgresql/joomla.sql b/installation/sql/postgresql/joomla.sql
index eb9070b023e81..33b70686c48f0 100644
--- a/installation/sql/postgresql/joomla.sql
+++ b/installation/sql/postgresql/joomla.sql
@@ -609,7 +609,8 @@ INSERT INTO "#__extensions" ("extension_id", "name", "type", "element", "folder"
 (450, 'plg_twofactorauth_yubikey', 'plugin', 'yubikey', 'twofactorauth', 0, 0, 1, 0, '', '', '', '', 0, '1970-01-01 00:00:00', 0, 0),
 (451, 'plg_search_tags', 'plugin', 'tags', 'search', 0, 1, 1, 0, '', '{"search_limit":"50","show_tagged_items":"1"}', '', '', 0, '1970-01-01 00:00:00', 0, 0),
 (452, 'plg_system_updatenotification', 'plugin', 'updatenotification', 'system', 0, 1, 1, 0, '', '', '', '', 0, '1970-01-01 00:00:00', 0, 0),
-(453, 'plg_editors-xtd_module', 'plugin', 'module', 'editors-xtd', 0, 1, 1, 0, '', '', '', '', 0, '1970-01-01 00:00:00', 0, 0);
+(453, 'plg_editors-xtd_module', 'plugin', 'module', 'editors-xtd', 0, 1, 1, 0, '', '', '', '', 0, '1970-01-01 00:00:00', 0, 0),
+(454, 'plg_system_stats', 'plugin', 'stats', 'system', 0, 1, 1, 0, '', '', '', '', 0, '1970-01-01 00:00:00', 0, 0);
 
 -- Templates
 INSERT INTO "#__extensions" ("extension_id", "name", "type", "element", "folder", "client_id", "enabled", "access", "protected", "manifest_cache", "params", "custom_data", "system_data", "checked_out", "checked_out_time", "ordering", "state") VALUES
diff --git a/installation/sql/sqlazure/joomla.sql b/installation/sql/sqlazure/joomla.sql
index bd0b5ca4bdf13..a8ae09f76dae8 100644
--- a/installation/sql/sqlazure/joomla.sql
+++ b/installation/sql/sqlazure/joomla.sql
@@ -999,7 +999,9 @@ SELECT 451, 'plg_search_tags', 'plugin', 'tags', 'search', 0, 1, 1, 0, '', '{"se
 UNION ALL
 SELECT 452, 'plg_system_updatenotification', 'plugin', 'updatenotification', 'system', 0, 1, 1, 0, '', '', '', '', 0, '1900-01-01 00:00:00', 0, 0
 UNION ALL
-SELECT 453, 'plg_editors-xtd_module', 'plugin', 'module', 'editors-xtd', 0, 1, 1, 0, '', '', '', '', 0, '1900-01-01 00:00:00', 0, 0;
+SELECT 453, 'plg_editors-xtd_module', 'plugin', 'module', 'editors-xtd', 0, 1, 1, 0, '', '', '', '', 0, '1900-01-01 00:00:00', 0, 0
+UNION ALL
+SELECT 454, 'plg_system_stats', 'plugin', 'stats', 'system', 0, 1, 1, 0, '', '', '', '', 0, '1900-01-01 00:00:00', 0, 0;
 
 
 INSERT [#__extensions] ([extension_id], [name], [type], [element], [folder], [client_id], [enabled], [access], [protected], [manifest_cache], [params], [custom_data], [system_data], [checked_out], [checked_out_time], [ordering], [state])
diff --git a/plugins/system/stats/fields/uniqueid.php b/plugins/system/stats/fields/uniqueid.php
new file mode 100644
index 0000000000000..7238ee281b0ba
--- /dev/null
+++ b/plugins/system/stats/fields/uniqueid.php
@@ -0,0 +1,42 @@
+<?php
+/**
+ * @package     Joomla.Plugin
+ * @subpackage  System.stats
+ *
+ * @copyright   Copyright (C) 2005 - 2015 Open Source Matters, Inc. All rights reserved.
+ * @license     GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+defined('JPATH_BASE') or die;
+
+/**
+ * Unique ID Field class for the Stats Plugin.
+ *
+ * @since  3.5
+ */
+class StatsFormFieldUniqueid extends JFormField
+{
+	/**
+	 * The form field type.
+	 *
+	 * @var    string
+	 * @since  3.5
+	 */
+	protected $type = 'Uniqueid';
+
+	/**
+	 * Method to get the field input markup.
+	 *
+	 * @return  string	The field input markup.
+	 *
+	 * @since   3.5
+	 */
+	protected function getInput()
+	{
+		$onclick = ' onclick="document.getElementById(\'' . $this->id . '\').value=\'\';Joomla.submitbutton(\'plugin.apply\');"';
+
+		return '<input type="hidden" name="' . $this->name . '" id="' . $this->id . '" value="'
+			. htmlspecialchars($this->value, ENT_COMPAT, 'UTF-8') . '" /> <a class="btn" ' . $onclick . '>'
+			. '<span class="icon-refresh"></span> ' . JText::_('PLG_STATS_RESET_UNIQUE_ID') . '</a>';
+	}
+}
diff --git a/plugins/system/stats/stats.php b/plugins/system/stats/stats.php
new file mode 100644
index 0000000000000..39ccb1a3334a4
--- /dev/null
+++ b/plugins/system/stats/stats.php
@@ -0,0 +1,197 @@
+<?php
+/**
+ * @package     Joomla.Plugin
+ * @subpackage  System.stats
+ *
+ * @copyright   Copyright (C) 2005 - 2015 Open Source Matters, Inc. All rights reserved.
+ * @license     GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+defined('_JEXEC') or die;
+
+// Uncomment the following line to enable debug mode (stats sent every single time)
+// define('PLG_SYSTEM_STATS_DEBUG', 1);
+
+/**
+ * Statistics system plugin. This sends anonymous data back to the Joomla! Project about the
+ * PHP, SQL, Joomla and OS versions
+ *
+ * @since  3.5
+ */
+class PlgSystemStats extends JPlugin
+{
+	/**
+	 * Application object
+	 *
+	 * @var    JApplicationCms
+	 * @since  3.5
+	 */
+	protected $app;
+
+	/**
+	 * Database object
+	 *
+	 * @var    JDatabaseDriver
+	 * @since  3.5
+	 */
+	protected $db;
+
+	/**
+	 * Listener for the `onAfterInitialise` event
+	 *
+	 * @return  void
+	 *
+	 * @since   3.5
+	 */
+	public function onAfterInitialise()
+	{
+		// Only run this in admin
+		if (!$this->app->isAdmin())
+		{
+			return;
+		}
+
+		// Do we need to run? Compare the last run timestamp stored in the plugin's options with the current
+		// timestamp. If the difference is greater than the cache timeout we shall not execute again.
+		$now  = time();
+		$last = (int) $this->params->get('lastrun', 0);
+
+		// 12 hours - 60*60*12 = 43200
+		if (!defined('PLG_SYSTEM_STATS_DEBUG') && (abs($now - $last) < 43200))
+		{
+			return;
+		}
+
+		// Update last run status
+		$this->params->set('lastrun', $now);
+
+		$uniqueId = $this->params->get('unique_id', '');
+
+		/*
+		 * If the unique ID is empty (because we have never submitted a piece of data before or because the refresh button
+		 * has been used - generate a new ID and store it in the database for future use.
+		 */
+		if (empty($uniqueId))
+		{
+			$uniqueId = hash('sha1', JUserHelper::genRandomPassword(28) . time());
+			$this->params->set('unique_id', $uniqueId);
+		}
+
+		$query = $this->db->getQuery(true)
+			->update($this->db->quoteName('#__extensions'))
+			->set($this->db->quoteName('params') . ' = ' . $this->db->quote($this->params->toString('JSON')))
+			->where($this->db->quoteName('type') . ' = ' . $this->db->quote('plugin'))
+			->where($this->db->quoteName('folder') . ' = ' . $this->db->quote('system'))
+			->where($this->db->quoteName('element') . ' = ' . $this->db->quote('stats'));
+
+		try
+		{
+			// Lock the tables to prevent multiple plugin executions causing a race condition
+			$this->db->lockTable('#__extensions');
+		}
+		catch (Exception $e)
+		{
+			// If we can't lock the tables it's too risky to continue execution
+			return;
+		}
+
+		try
+		{
+			// Update the plugin parameters
+			$result = $this->db->setQuery($query)->execute();
+
+			$this->clearCacheGroups(array('com_plugins'), array(0, 1));
+		}
+		catch (Exception $exc)
+		{
+			// If we failed to execute
+			$this->db->unlockTables();
+			$result = false;
+		}
+
+		try
+		{
+			// Unlock the tables after writing
+			$this->db->unlockTables();
+		}
+		catch (Exception $e)
+		{
+			// If we can't lock the tables assume we have somehow failed
+			$result = false;
+		}
+
+		// Abort on failure
+		if (!$result)
+		{
+			return;
+		}
+
+		$data = array(
+			'unique_id'   => $uniqueId,
+			'php_version' => PHP_VERSION,
+			'db_type'     => $this->db->name,
+			'db_version'  => $this->db->getVersion(),
+			'cms_version' => JVERSION,
+			'server_os'   => php_uname('s') . ' ' . php_uname('r')
+		);
+
+		// Don't let the request take longer than 2 seconds to avoid page timeout issues
+		try
+		{
+			// Don't let the request take longer than 2 seconds to avoid page timeout issues
+			JHttpFactory::getHttp()->post($this->params->get('url', 'https://developer.joomla.org/stats/submit'), $data, null, 2);
+		}
+		catch (UnexpectedValueException $e)
+		{
+			// There was an error sending stats. Should we do anything?
+			JLog::add('Could not send site statistics to remote server: ' . $e->getMessage(), JLog::WARNING, 'stats');
+		}
+		catch (RuntimeException $e)
+		{
+			// There was an error connecting to the server or in the post request
+			JLog::add('Could not connect to statistics server: ' . $e->getMessage(), JLog::WARNING, 'stats');
+		}
+		catch (Exception $e)
+		{
+			// An unexpected error in processing; don't let this failure kill the site
+			JLog::add('Unexpected error connecting to statistics server: ' . $e->getMessage(), JLog::WARNING, 'stats');
+		}
+	}
+
+	/**
+	 * Clears cache groups. We use it to clear the plugins cache after we update the last run timestamp.
+	 *
+	 * @param   array  $clearGroups   The cache groups to clean
+	 * @param   array  $cacheClients  The cache clients (site, admin) to clean
+	 *
+	 * @return  void
+	 *
+	 * @since   3.5
+	 */
+	private function clearCacheGroups(array $clearGroups, array $cacheClients = array(0, 1))
+	{
+		$conf = JFactory::getConfig();
+
+		foreach ($clearGroups as $group)
+		{
+			foreach ($cacheClients as $client_id)
+			{
+				try
+				{
+					$options = array(
+						'defaultgroup' => $group,
+						'cachebase'    => ($client_id) ? JPATH_ADMINISTRATOR . '/cache' :
+							$conf->get('cache_path', JPATH_SITE . '/cache')
+					);
+
+					$cache = JCache::getInstance('callback', $options);
+					$cache->clean();
+				}
+				catch (Exception $e)
+				{
+					// Ignore it
+				}
+			}
+		}
+	}
+}
diff --git a/plugins/system/stats/stats.xml b/plugins/system/stats/stats.xml
new file mode 100644
index 0000000000000..48aba4177329a
--- /dev/null
+++ b/plugins/system/stats/stats.xml
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<extension version="3.4" type="plugin" group="system" method="upgrade">
+	<name>plg_system_stats</name>
+	<author>Joomla! Project</author>
+	<creationDate>November 2013</creationDate>
+	<copyright>Copyright (C) 2005 - 2015 Open Source Matters. All rights reserved.</copyright>
+	<license>GNU General Public License version 2 or later; see LICENSE.txt</license>
+	<authorEmail>admin@joomla.org</authorEmail>
+	<authorUrl>www.joomla.org</authorUrl>
+	<version>3.5.0</version>
+	<description>PLG_STATS_XML_DESCRIPTION</description>
+	<files>
+		<filename plugin="stats">stats.php</filename>
+		<folder>fields</folder>
+	</files>
+	<languages folder="language">
+		<language tag="en-GB">en-GB/en-GB.plg_system_stats.ini</language>
+		<language tag="en-GB">en-GB/en-GB.plg_system_stats.sys.ini</language>
+	</languages>
+	<config>
+		<fields name="params" addfieldpath="/plugins/system/stats/fields">
+			<fieldset name="basic">
+				<field
+					name="unique_id"
+					type="stats.uniqueid"
+					description="PLG_STATS_UNIQUE_ID_DESC"
+					label="PLG_STATS_UNIQUE_ID_LABEL"
+					size="10"
+				/>
+				<field
+					name="url"
+					type="url"
+					filter="url"
+					size="30"
+					default="https://developer.joomla.org/stats/submit"
+					description="PLG_STATS_URL_DESC"
+					label="PLG_STATS_URL_LABEL"					
+				/>
+				<field
+					name="lastrun"
+					type="hidden"
+					default="0"
+					size="15"
+				/>
+			</fieldset>
+		</fields>
+	</config>
+</extension>