diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 63da6645c6860cfb7be2673b8e648a3ea2f490fa..a7eb7a89edb8d2f41acacecdb5ef16e28ea43afd 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,7 +1,8 @@
 // $Id$
 
-Drupal 6.20-dev, xxxx-xx-xx (development release)
+Drupal 6.20, 2010-12-15
 ----------------------
+- Fixed a variety of small bugs, improved code documentation.
 
 Drupal 6.19, 2010-08-11
 ----------------------
diff --git a/includes/common.inc b/includes/common.inc
index 73d97f1549d48cd2235150fc13c2cdb76912285e..cf70d22d83dafdfad319561b88360d691b919f2d 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -631,7 +631,7 @@ function drupal_error_handler($errno, $message, $filename, $line, $context) {
     return;
   }
 
-  if ($errno & (E_ALL ^ E_DEPRECATED)) {
+  if ($errno & (E_ALL ^ E_DEPRECATED ^ E_NOTICE)) {
     $types = array(1 => 'error', 2 => 'warning', 4 => 'parse error', 8 => 'notice', 16 => 'core error', 32 => 'core warning', 64 => 'compile error', 128 => 'compile warning', 256 => 'user error', 512 => 'user warning', 1024 => 'user notice', 2048 => 'strict warning', 4096 => 'recoverable fatal error');
 
     // For database errors, we want the line number/file name of the place that
diff --git a/modules/system/system.module b/modules/system/system.module
index 932ab2a6f57ee2ddcacdd33846f57cb9258446dd..e55666c7fc37d2f1668a131fbf7597885db200a9 100644
--- a/modules/system/system.module
+++ b/modules/system/system.module
@@ -9,7 +9,7 @@
 /**
  * The current system version.
  */
-define('VERSION', '6.20-dev');
+define('VERSION', '6.20');
 
 /**
  * Core API compatibility.