Index: t3lib/class.t3lib_div.php
===================================================================
--- t3lib/class.t3lib_div.php	(revision 4370)
+++ t3lib/class.t3lib_div.php	(working copy)
@@ -2662,16 +2662,10 @@
 					)
 				);
 			$content = @file_get_contents($url, false, $ctx);
-			if ($content === false && isset($report))	{
-					// TODO: Remove this once PHP 5.1 support is dropped completely
-				if (function_exists('error_get_last')) {
-					$phpError = error_get_last();
-					$report['error'] = $phpError['type'];
-					$report['message'] = $phpError['message'];
-				} else {
-					$report['error'] = -1;
-					$report['message'] = 'Couldn\'t get URL.';
-				}
+			if ($content === false && isset($report)) {
+				$phpError = error_get_last();
+				$report['error'] = $phpError['type'];
+				$report['message'] = $phpError['message'];
 			}
 		} else	{
 			if (isset($report))	{
Index: typo3/init.php
===================================================================
--- typo3/init.php	(revision 4370)
+++ typo3/init.php	(working copy)
@@ -60,7 +60,7 @@
 // *******************************
 // Checking PHP version
 // *******************************
-if (version_compare(phpversion(), '5.1', '<'))	die ('TYPO3 requires PHP 5.1.0 or higher.');
+if (version_compare(phpversion(), '5.2', '<'))	die ('TYPO3 requires PHP 5.2.0 or higher.');
 
 
 // *******************************
Index: typo3/sysext/cms/tslib/index_ts.php
===================================================================
--- typo3/sysext/cms/tslib/index_ts.php	(revision 4370)
+++ typo3/sysext/cms/tslib/index_ts.php	(working copy)
@@ -41,7 +41,7 @@
 // *******************************
 // Checking PHP version
 // *******************************
-if (version_compare(phpversion(), '5.1', '<'))	die ('TYPO3 requires PHP 5.1.0 or higher.');
+if (version_compare(phpversion(), '5.2', '<'))	die ('TYPO3 requires PHP 5.2.0 or higher.');
 
 // *******************************
 // Set error reporting