diff --git a/group/db/install.xml b/group/db/install.xml
index 5ce78667dba..f4d5cac4822 100644
--- a/group/db/install.xml
+++ b/group/db/install.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<XMLDB PATH="group/db" VERSION="20070120" COMMENT="XMLDB file for Moodle groups."
+<XMLDB PATH="group/db" VERSION="20070122" COMMENT="XMLDB file for Moodle groups."
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:noNamespaceSchemaLocation="../../lib/xmldb/xmldb.xsd"
 >
@@ -10,7 +10,7 @@
         <FIELD NAME="name" TYPE="char" LENGTH="254" NOTNULL="true" SEQUENCE="false" ENUM="false" COMMENT="Short human readable unique name for the group." PREVIOUS="id" NEXT="description"/>
         <FIELD NAME="description" TYPE="text" LENGTH="small" NOTNULL="false" SEQUENCE="false" ENUM="false" PREVIOUS="name" NEXT="enrolmentkey"/>
         <FIELD NAME="enrolmentkey" TYPE="char" LENGTH="50" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="description" NEXT="lang"/>
-        <FIELD NAME="lang" TYPE="char" LENGTH="10" NOTNULL="true" DEFAULT="en" SEQUENCE="false" ENUM="false" PREVIOUS="enrolmentkey" NEXT="theme"/>
+        <FIELD NAME="lang" TYPE="char" LENGTH="30" NOTNULL="true" DEFAULT="en" SEQUENCE="false" ENUM="false" PREVIOUS="enrolmentkey" NEXT="theme"/>
         <FIELD NAME="theme" TYPE="char" LENGTH="50" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="lang" NEXT="picture"/>
         <FIELD NAME="picture" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="theme" NEXT="hidepicture"/>
         <FIELD NAME="hidepicture" TYPE="int" LENGTH="1" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="picture" NEXT="timecreated"/>
diff --git a/group/db/upgrade.php b/group/db/upgrade.php
index 56e6a919c89..d9dcb25139a 100644
--- a/group/db/upgrade.php
+++ b/group/db/upgrade.php
@@ -230,6 +230,17 @@ function xmldb_group_upgrade($oldversion=0) {
         $result = $result && change_field_notnull($table, $field);
     }
 
+    if ($result && $oldversion < 2007012100) {
+
+    /// Changing precision of field lang on table groups to (30)
+        $table = new XMLDBTable('groups');
+        $field = new XMLDBField('lang');
+        $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, 'en', 'enrolmentkey');
+
+    /// Launch change of precision for field lang
+        $result = $result && change_field_precision($table, $field);
+    }
+
     return $result;
 }
 
diff --git a/group/version.php b/group/version.php
index c2029279395..83d23853e2e 100644
--- a/group/version.php
+++ b/group/version.php
@@ -5,7 +5,7 @@
 //  This fragment is called by /admin/index.php
 ////////////////////////////////////////////////////////////////////////////////
 
-$group_version  = 2007012000;
+$group_version  = 2007012100;
 //$module->requires = 2006120400;  // Requires this Moodle version
 
 ?>
diff --git a/lib/db/install.xml b/lib/db/install.xml
index 8efa822cf3d..5f9b4c5ea37 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="20070112" COMMENT="XMLDB file for core Moodle tables"
+<XMLDB PATH="lib/db" VERSION="20070122" COMMENT="XMLDB file for core Moodle tables"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:noNamespaceSchemaLocation="../../lib/xmldb/xmldb.xsd"
 >
@@ -56,7 +56,7 @@
         <FIELD NAME="hiddensections" TYPE="int" LENGTH="2" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="visible" NEXT="groupmode"/>
         <FIELD NAME="groupmode" TYPE="int" LENGTH="4" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="hiddensections" NEXT="groupmodeforce"/>
         <FIELD NAME="groupmodeforce" TYPE="int" LENGTH="4" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="groupmode" NEXT="lang"/>
-        <FIELD NAME="lang" TYPE="char" LENGTH="10" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="groupmodeforce" NEXT="theme"/>
+        <FIELD NAME="lang" TYPE="char" LENGTH="30" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="groupmodeforce" NEXT="theme"/>
         <FIELD NAME="theme" TYPE="char" LENGTH="50" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="lang" NEXT="cost"/>
         <FIELD NAME="cost" TYPE="char" LENGTH="10" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="theme" NEXT="currency"/>
         <FIELD NAME="currency" TYPE="char" LENGTH="3" NOTNULL="true" DEFAULT="USD" SEQUENCE="false" ENUM="false" PREVIOUS="cost" NEXT="timecreated"/>
@@ -544,7 +544,7 @@
         <FIELD NAME="address" TYPE="char" LENGTH="70" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="department" NEXT="city"/>
         <FIELD NAME="city" TYPE="char" LENGTH="20" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="address" NEXT="country"/>
         <FIELD NAME="country" TYPE="char" LENGTH="2" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="city" NEXT="lang"/>
-        <FIELD NAME="lang" TYPE="char" LENGTH="10" NOTNULL="true" DEFAULT="en" SEQUENCE="false" ENUM="false" PREVIOUS="country" NEXT="theme"/>
+        <FIELD NAME="lang" TYPE="char" LENGTH="30" NOTNULL="true" DEFAULT="en" SEQUENCE="false" ENUM="false" PREVIOUS="country" NEXT="theme"/>
         <FIELD NAME="theme" TYPE="char" LENGTH="50" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="lang" NEXT="timezone"/>
         <FIELD NAME="timezone" TYPE="char" LENGTH="100" NOTNULL="true" DEFAULT="99" SEQUENCE="false" ENUM="false" PREVIOUS="theme" NEXT="firstaccess"/>
         <FIELD NAME="firstaccess" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="timezone" NEXT="lastaccess"/>
diff --git a/lib/db/upgrade.php b/lib/db/upgrade.php
index 05b3478fd3c..fcb39fd66a6 100644
--- a/lib/db/upgrade.php
+++ b/lib/db/upgrade.php
@@ -559,6 +559,25 @@ function xmldb_main_upgrade($oldversion=0) {
         }
     }
 
+    if ($result && $oldversion < 2007012101) {
+
+    /// Changing precision of field lang on table course to (30)
+        $table = new XMLDBTable('course');
+        $field = new XMLDBField('lang');
+        $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, null, 'groupmodeforce');
+
+    /// Launch change of precision for field course->lang
+        $result = $result && change_field_precision($table, $field);
+
+    /// Changing precision of field lang on table user to (30)
+        $table = new XMLDBTable('user');
+        $field = new XMLDBField('lang');
+        $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, 'en', 'country');
+
+    /// Launch change of precision for field user->lang
+        $result = $result && change_field_precision($table, $field);
+    }
+
     return $result;
 
 }
diff --git a/version.php b/version.php
index 9a57a347240..d5bdd8cc88d 100644
--- a/version.php
+++ b/version.php
@@ -6,7 +6,7 @@
 // This is compared against the values stored in the database to determine
 // whether upgrades should be performed (see lib/db/*.php)
 
-   $version = 2007012100;  // YYYYMMDD = date
+   $version = 2007012101;  // YYYYMMDD = date
                            //       XY = increments within a single day
 
    $release = '1.8 dev';    // Human-friendly version name