diff --git a/lib/Cake/Test/Case/Utility/HashTest.php b/lib/Cake/Test/Case/Utility/HashTest.php
index 3b398d0d5df..17b436239f1 100644
--- a/lib/Cake/Test/Case/Utility/HashTest.php
+++ b/lib/Cake/Test/Case/Utility/HashTest.php
@@ -928,6 +928,9 @@ public function testExtractUnevenKeys() {
  * @return void
  */
 	public function testSort() {
+		$result = Hash::sort(array(), '{n}.name', 'asc');
+		$this->assertEquals(array(), $result);
+
 		$a = array(
 			0 => array(
 				'Person' => array('name' => 'Jeff'),
diff --git a/lib/Cake/Test/Case/Utility/SetTest.php b/lib/Cake/Test/Case/Utility/SetTest.php
index 4ee3a85f537..1bd20aae435 100644
--- a/lib/Cake/Test/Case/Utility/SetTest.php
+++ b/lib/Cake/Test/Case/Utility/SetTest.php
@@ -225,6 +225,9 @@ public function testMerge() {
  * @return void
  */
 	public function testSort() {
+		$result = Set::sort(array(), '{n}.name', 'asc');
+		$this->assertEquals(array(), $result);
+
 		$a = array(
 			0 => array('Person' => array('name' => 'Jeff'), 'Friend' => array(array('name' => 'Nate'))),
 			1 => array('Person' => array('name' => 'Tracy'),'Friend' => array(array('name' => 'Lindsay')))
diff --git a/lib/Cake/Test/Case/Utility/ValidationTest.php b/lib/Cake/Test/Case/Utility/ValidationTest.php
index 56f935a1bf7..6b625e92fb8 100644
--- a/lib/Cake/Test/Case/Utility/ValidationTest.php
+++ b/lib/Cake/Test/Case/Utility/ValidationTest.php
@@ -1655,6 +1655,11 @@ public function testEmail() {
 		$this->assertTrue(Validation::email('abc@example.travel'));
 		$this->assertTrue(Validation::email('someone@st.t-com.hr'));
 
+		// gTLD's
+		$this->assertTrue(Validation::email('example@host.local'));
+		$this->assertTrue(Validation::email('example@x.org'));
+		$this->assertTrue(Validation::email('example@host.xxx'));
+
 		// strange, but technically valid email addresses
 		$this->assertTrue(Validation::email('S=postmaster/OU=rz/P=uni-frankfurt/A=d400/C=de@gateway.d400.de'));
 		$this->assertTrue(Validation::email('customer/department=shipping@example.com'));
@@ -1669,7 +1674,6 @@ public function testEmail() {
 		$this->assertFalse(Validation::email('abc.@example.com'));
 		$this->assertFalse(Validation::email('abc@example..com'));
 		$this->assertFalse(Validation::email('abc@example.com.a'));
-		$this->assertFalse(Validation::email('abc@example.toolong'));
 		$this->assertFalse(Validation::email('abc;@example.com'));
 		$this->assertFalse(Validation::email('abc@example.com;'));
 		$this->assertFalse(Validation::email('abc@efg@example.com'));
@@ -1839,11 +1843,11 @@ public function testUrl() {
 		$this->assertTrue(Validation::url('http://example.com/~userdir/'));
 		$this->assertTrue(Validation::url('http://underscore_subdomain.example.org'));
 		$this->assertTrue(Validation::url('http://_jabber._tcp.gmail.com'));
+		$this->assertTrue(Validation::url('http://www.domain.longttldnotallowed'));
 		$this->assertFalse(Validation::url('ftps://256.168.0.1/pub/cake'));
 		$this->assertFalse(Validation::url('ftp://256.168.0.1/pub/cake'));
 		$this->assertFalse(Validation::url('http://w_w.domain.co_m'));
 		$this->assertFalse(Validation::url('http://www.domain.12com'));
-		$this->assertFalse(Validation::url('http://www.domain.longttldnotallowed'));
 		$this->assertFalse(Validation::url('http://www.-invaliddomain.tld'));
 		$this->assertFalse(Validation::url('http://www.domain.-invalidtld'));
 		$this->assertFalse(Validation::url('http://this-domain-is-too-loooooong-by-icann-rules-maximum-length-is-63.com'));
diff --git a/lib/Cake/Utility/Hash.php b/lib/Cake/Utility/Hash.php
index 5b8308f88f6..023357692c7 100644
--- a/lib/Cake/Utility/Hash.php
+++ b/lib/Cake/Utility/Hash.php
@@ -732,6 +732,9 @@ public static function apply(array $data, $path, $function) {
  * @link http://book.cakephp.org/2.0/en/core-utility-libraries/hash.html#Hash::sort
  */
 	public static function sort(array $data, $path, $dir, $type = 'regular') {
+		if (empty($data)) {
+			return array();
+		}
 		$originalKeys = array_keys($data);
 		$numeric = is_numeric(implode('', $originalKeys));
 		if ($numeric) {
diff --git a/lib/Cake/Utility/Set.php b/lib/Cake/Utility/Set.php
index 72eba937d48..a80a8fa0394 100644
--- a/lib/Cake/Utility/Set.php
+++ b/lib/Cake/Utility/Set.php
@@ -956,6 +956,9 @@ protected static function _flatten($results, $key = null) {
  * @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::sort
  */
 	public static function sort($data, $path, $dir) {
+		if (empty($data)) {
+			return $data;
+		}
 		$originalKeys = array_keys($data);
 		$numeric = false;
 		if (is_numeric(implode('', $originalKeys))) {
diff --git a/lib/Cake/Utility/Validation.php b/lib/Cake/Utility/Validation.php
index a8f0d225a29..e1387389acb 100644
--- a/lib/Cake/Utility/Validation.php
+++ b/lib/Cake/Utility/Validation.php
@@ -39,7 +39,7 @@ class Validation {
  * @var array
  */
 	protected static $_pattern = array(
-		'hostname' => '(?:[-_a-z0-9][-_a-z0-9]*\.)*(?:[a-z0-9][-a-z0-9]{0,62})\.(?:(?:[a-z]{2}\.)?[a-z]{2,4}|museum|travel)'
+		'hostname' => '(?:[-_a-z0-9][-_a-z0-9]*\.)*(?:[a-z0-9][-a-z0-9]{0,62})\.(?:(?:[a-z]{2}\.)?[a-z]{2,})'
 	);
 
 /**