diff --git a/lib/db/install.xml b/lib/db/install.xml
index 05d99f8e6dd..5b132bc0041 100644
--- a/lib/db/install.xml
+++ b/lib/db/install.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<XMLDB PATH="lib/db" VERSION="20110526" COMMENT="XMLDB file for core Moodle tables"
+<XMLDB PATH="lib/db" VERSION="20110627" COMMENT="XMLDB file for core Moodle tables"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:noNamespaceSchemaLocation="../../lib/xmldb/xmldb.xsd"
 >
@@ -1280,7 +1280,7 @@
         <FIELD NAME="questiontextformat" TYPE="int" LENGTH="2" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" PREVIOUS="questiontext" NEXT="generalfeedback"/>
         <FIELD NAME="generalfeedback" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" COMMENT="to store the question feedback" PREVIOUS="questiontextformat" NEXT="generalfeedbackformat"/>
         <FIELD NAME="generalfeedbackformat" TYPE="int" LENGTH="2" NOTNULL="true" UNSIGNED="false" DEFAULT="0" SEQUENCE="false" PREVIOUS="generalfeedback" NEXT="defaultmark"/>
-        <FIELD NAME="defaultmark" TYPE="number" LENGTH="12" NOTNULL="true" UNSIGNED="true" DEFAULT="1" SEQUENCE="false" DECIMALS="7" PREVIOUS="generalfeedbackformat" NEXT="penalty"/>
+        <FIELD NAME="defaultmark" TYPE="number" LENGTH="12" NOTNULL="true" UNSIGNED="false" DEFAULT="1" SEQUENCE="false" DECIMALS="7" PREVIOUS="generalfeedbackformat" NEXT="penalty"/>
         <FIELD NAME="penalty" TYPE="number" LENGTH="12" NOTNULL="true" UNSIGNED="false" DEFAULT="0.3333333" SEQUENCE="false" DECIMALS="7" PREVIOUS="defaultmark" NEXT="qtype"/>
         <FIELD NAME="qtype" TYPE="char" LENGTH="20" NOTNULL="true" SEQUENCE="false" PREVIOUS="penalty" NEXT="length"/>
         <FIELD NAME="length" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="1" SEQUENCE="false" PREVIOUS="qtype" NEXT="stamp"/>
@@ -1320,7 +1320,7 @@
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="true" NEXT="questionid"/>
         <FIELD NAME="questionid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" PREVIOUS="id" NEXT="hint"/>
         <FIELD NAME="hint" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" COMMENT="The text of the feedback to be given." PREVIOUS="questionid" NEXT="hintformat"/>
-        <FIELD NAME="hintformat" TYPE="int" LENGTH="4" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" DEFAULT="0" COMMENT="The format of the hint." PREVIOUS="hint" NEXT="shownumcorrect"/>
+        <FIELD NAME="hintformat" TYPE="int" LENGTH="4" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="The format of the hint." PREVIOUS="hint" NEXT="shownumcorrect"/>
         <FIELD NAME="shownumcorrect" TYPE="int" LENGTH="1" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" COMMENT="Whether the feedback should include a message about how many things the student got right. This is only applicable to certain question types (for example matching or multiple choice multiple-response)." PREVIOUS="hintformat" NEXT="clearwrong"/>
         <FIELD NAME="clearwrong" TYPE="int" LENGTH="1" NOTNULL="false" UNSIGNED="true" SEQUENCE="false" COMMENT="Whether any wrong choices should be cleared before the next try. Whether this is applicable, and what it means, depends on the question type, as with the shownumright option." PREVIOUS="shownumcorrect" NEXT="options"/>
         <FIELD NAME="options" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false" COMMENT="A space for any other question-type specific options." PREVIOUS="clearwrong"/>
@@ -1349,7 +1349,7 @@
         <FIELD NAME="slot" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" COMMENT="Used to number the questions in one attempt sequentially." PREVIOUS="questionusageid" NEXT="behaviour"/>
         <FIELD NAME="behaviour" TYPE="char" LENGTH="32" NOTNULL="true" SEQUENCE="false" COMMENT="The name of the question behaviour that is managing this question attempt." PREVIOUS="slot" NEXT="questionid"/>
         <FIELD NAME="questionid" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" COMMENT="The id of the question being attempted. Foreign key references question.id." PREVIOUS="behaviour" NEXT="variant"/>
-        <FIELD NAME="variant" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" SEQUENCE="false" DEFAULT="1" COMMENT="The variant of the qusetion being used." PREVIOUS="questionid" NEXT="maxmark"/>
+        <FIELD NAME="variant" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="1" SEQUENCE="false" COMMENT="The variant of the qusetion being used." PREVIOUS="questionid" NEXT="maxmark"/>
         <FIELD NAME="maxmark" TYPE="number" LENGTH="12" NOTNULL="true" UNSIGNED="false" SEQUENCE="false" DECIMALS="7" COMMENT="The grade this question is marked out of in this attempt." PREVIOUS="variant" NEXT="minfraction"/>
         <FIELD NAME="minfraction" TYPE="number" LENGTH="12" NOTNULL="true" UNSIGNED="false" SEQUENCE="false" DECIMALS="7" COMMENT="Some questions can award negative marks. This indicates the most negative mark that can be awarded, on the faction scale where the maximum positive mark is 1." PREVIOUS="maxmark" NEXT="flagged"/>
         <FIELD NAME="flagged" TYPE="int" LENGTH="1" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" COMMENT="Whether this question has been flagged within the attempt." PREVIOUS="minfraction" NEXT="questionsummary"/>
@@ -2834,4 +2834,4 @@
       </KEYS>
     </TABLE>
   </TABLES>
-</XMLDB>
+</XMLDB>
\ No newline at end of file
diff --git a/lib/db/upgrade.php b/lib/db/upgrade.php
index 98e17cf1415..1f02f230e94 100644
--- a/lib/db/upgrade.php
+++ b/lib/db/upgrade.php
@@ -6559,17 +6559,17 @@ WHERE gradeitemid IS NOT NULL AND grademax IS NOT NULL");
     }
 
     // Signed fixes - MDL-28032
-    if ($oldversion < 2011062400.01) {
+    if ($oldversion < 2011062400.02) {
 
         // Changing sign of field defaultmark on table question to unsigned
         $table = new xmldb_table('question');
-        $field = new xmldb_field('defaultmark', XMLDB_TYPE_NUMBER, '12, 7', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '1', 'generalfeedbackformat');
+        $field = new xmldb_field('defaultmark', XMLDB_TYPE_NUMBER, '12, 7', null, XMLDB_NOTNULL, null, '1', 'generalfeedbackformat');
 
         // Launch change of sign for field defaultmark
         $dbman->change_field_unsigned($table, $field);
 
         // Main savepoint reached
-        upgrade_main_savepoint(true, 2011062400.01);
+        upgrade_main_savepoint(true, 2011062400.02);
     }
 
     return true;
diff --git a/version.php b/version.php
index 223909314a4..78dadd3b026 100644
--- a/version.php
+++ b/version.php
@@ -31,7 +31,7 @@ defined('MOODLE_INTERNAL') || die();
 
 
 
-$version  = 2011062400.01;              // YYYYMMDD      = weekly release date of this DEV branch
+$version  = 2011062400.02;              // YYYYMMDD      = weekly release date of this DEV branch
                                         //         RR    = release increments - 00 in DEV branches
                                         //           .XX = incremental changes