diff --git a/tbl_addfield.php b/tbl_addfield.php
index c5ae997e7..21abf792e 100644
--- a/tbl_addfield.php
+++ b/tbl_addfield.php
@@ -168,15 +168,6 @@ if (isset($submit_num_fields)) {
 
         $cfgRelation = PMA_getRelationsParam();
 
-        // garvin: Update comment table, if a comment was set.
-        if (isset($field_comments) && is_array($field_comments) && $cfgRelation['commwork'] && PMA_MYSQL_INT_VERSION < 40100) {
-            foreach ($field_comments AS $fieldindex => $fieldcomment) {
-                if (isset($field_name[$fieldindex]) && strlen($field_name[$fieldindex])) {
-                    PMA_setComment($db, $table, $field_name[$fieldindex], $fieldcomment, '', 'pmadb');
-                }
-            }
-        }
-
         // garvin: Update comment table for mime types [MIME]
         if (isset($field_mimetype) && is_array($field_mimetype) && $cfgRelation['commwork'] && $cfgRelation['mimework'] && $cfg['BrowseMIME']) {
             foreach ($field_mimetype AS $fieldindex => $mimetype) {
diff --git a/tbl_alter.php b/tbl_alter.php
index 8fa3d2880..badcb3955 100644
--- a/tbl_alter.php
+++ b/tbl_alter.php
@@ -83,16 +83,6 @@ if (isset($do_save_data)) {
 
         $cfgRelation = PMA_getRelationsParam();
 
-        // take care of pmadb internal comments here
-        // garvin: Update comment table, if a comment was set.
-        if (PMA_MYSQL_INT_VERSION < 40100 && isset($field_comments) && is_array($field_comments) && $cfgRelation['commwork']) {
-            foreach ($field_comments AS $fieldindex => $fieldcomment) {
-                if (isset($field_name[$fieldindex]) && strlen($field_name[$fieldindex])) {
-                    PMA_setComment($db, $table, $field_name[$fieldindex], $fieldcomment, $field_orig[$fieldindex], 'pmadb');
-                }
-            }
-        }
-
         // garvin: Rename relations&display fields, if altered.
         if (($cfgRelation['displaywork'] || $cfgRelation['relwork']) && isset($field_orig) && is_array($field_orig)) {
             foreach ($field_orig AS $fieldindex => $fieldcontent) {
diff --git a/tbl_create.php b/tbl_create.php
index e478aa075..ebcfa3303 100644
--- a/tbl_create.php
+++ b/tbl_create.php
@@ -9,7 +9,6 @@
  * @uses    $strTable
  * @uses    $strHasBeenCreated
  * @uses    PMA_ENGINE_KEYWORD
- * @uses    PMA_MYSQL_INT_VERSION
  * @uses    PMA_Table::generateFieldSpec()
  * @uses    PMA_checkParameters()
  * @uses    PMA_generateCharsetQueryPart()
@@ -185,7 +184,7 @@ if (isset($_REQUEST['do_save_data'])) {
     if (!empty($tbl_type) && ($tbl_type != 'Default')) {
         $sql_query .= ' ' . PMA_ENGINE_KEYWORD  . ' = ' . $tbl_type;
     }
-    if (PMA_MYSQL_INT_VERSION >= 40100 && !empty($tbl_collation)) {
+    if (!empty($tbl_collation)) {
         $sql_query .= PMA_generateCharsetQueryPart($tbl_collation);
     }
 
@@ -204,16 +203,6 @@ if (isset($_REQUEST['do_save_data'])) {
 
         $cfgRelation = PMA_getRelationsParam();
 
-        // garvin: Update comment table, if a comment was set.
-        if (isset($field_comments) && is_array($field_comments)
-         && $cfgRelation['commwork'] && PMA_MYSQL_INT_VERSION < 40100) {
-            foreach ($field_comments as $fieldindex => $fieldcomment) {
-                if (isset($field_name[$fieldindex]) && strlen($field_name[$fieldindex])) {
-                    PMA_setComment($db, $table, $field_name[$fieldindex], $fieldcomment, '', 'pmadb');
-                }
-            }
-        }
-
         // garvin: Update comment table for mime types [MIME]
         if (isset($field_mimetype) && is_array($field_mimetype)
          && $cfgRelation['commwork'] && $cfgRelation['mimework']
diff --git a/tbl_indexes.php b/tbl_indexes.php
index 2a0ec52c2..0a306ac68 100644
--- a/tbl_indexes.php
+++ b/tbl_indexes.php
@@ -220,10 +220,7 @@ elseif (!defined('PMA_IDX_INCLUDED')
         $edited_index_data                    = $indexes_data[$old_index];
 
 
-        if ((PMA_MYSQL_INT_VERSION < 40002
-            && $edited_index_info['Comment'] == 'FULLTEXT')
-          || (PMA_MYSQL_INT_VERSION >= 40002
-            && $edited_index_info['Index_type'] == 'FULLTEXT')) {
+        if ($edited_index_info['Index_type'] == 'FULLTEXT') {
             $index_type                       = 'FULLTEXT';
         } elseif ($index == 'PRIMARY') {
             $index_type                       = 'PRIMARY';
diff --git a/tbl_printview.php b/tbl_printview.php
index 873785f83..a4518b631 100644
--- a/tbl_printview.php
+++ b/tbl_printview.php
@@ -170,9 +170,7 @@ foreach ($the_tables as $key => $table) {
     if ($have_rel) {
         echo '<th>' . $strLinksTo . '</th>' . "\n";
     }
-    if ($cfgRelation['commwork'] || PMA_MYSQL_INT_VERSION >= 40100) {
-        echo '    <th>' . $strComments . '</th>' . "\n";
-    }
+    echo '    <th>' . $strComments . '</th>' . "\n";
     if ($cfgRelation['mimework']) {
         echo '    <th>MIME</th>' . "\n";
     }
@@ -260,14 +258,12 @@ foreach ($the_tables as $key => $table) {
         }
         echo '&nbsp;</td>' . "\n";
     }
-    if ($cfgRelation['commwork'] || PMA_MYSQL_INT_VERSION >= 40100) {
-        echo '    <td>';
-        $comments = PMA_getComments($db, $table);
-        if (isset($comments[$field_name])) {
-            echo htmlspecialchars($comments[$field_name]);
-        }
-        echo '&nbsp;</td>' . "\n";
+    echo '    <td>';
+    $comments = PMA_getComments($db, $table);
+    if (isset($comments[$field_name])) {
+        echo htmlspecialchars($comments[$field_name]);
     }
+    echo '&nbsp;</td>' . "\n";
     if ($cfgRelation['mimework']) {
         $mime_map = PMA_getMIME($db, $table, true);
 
@@ -288,8 +284,7 @@ foreach ($the_tables as $key => $table) {
 
     <?php
 
-    if (! $tbl_is_view
-     && ($db != 'information_schema' || PMA_MYSQL_INT_VERSION < 50002)) {
+    if (! $tbl_is_view && $db != 'information_schema') {
 
         /**
          * Displays indexes
diff --git a/tbl_relation.php b/tbl_relation.php
index 4d13362e9..24dfb8940 100644
--- a/tbl_relation.php
+++ b/tbl_relation.php
@@ -171,15 +171,13 @@ if (isset($_REQUEST['destination_innodb'])) {
                 // an option has been changed for ON DELETE or ON UPDATE
 
                 // remove existing key
-                if (PMA_MYSQL_INT_VERSION >= 40013) {
-                    $sql_query  = 'ALTER TABLE ' . PMA_backquote($table)
-                                . ' DROP FOREIGN KEY '
-                                . PMA_backquote($existrel_innodb[$master_field]['constraint']) . ';';
+                $sql_query  = 'ALTER TABLE ' . PMA_backquote($table)
+                            . ' DROP FOREIGN KEY '
+                            . PMA_backquote($existrel_innodb[$master_field]['constraint']) . ';';
 
-                    // I tried to send both in one query but it failed
-                    $upd_rs     = PMA_DBI_query($sql_query);
-                    $display_query .= $sql_query . "\n";
-                }
+                // I tried to send both in one query but it failed
+                $upd_rs     = PMA_DBI_query($sql_query);
+                $display_query .= $sql_query . "\n";
 
                 // add another
                 $sql_query  = 'ALTER TABLE ' . PMA_backquote($table)
@@ -203,13 +201,11 @@ if (isset($_REQUEST['destination_innodb'])) {
 
             } // end if... else....
         } elseif (isset($existrel_innodb[$master_field])) {
-            if (PMA_MYSQL_INT_VERSION >= 40013) {
-                $sql_query  = 'ALTER TABLE ' . PMA_backquote($table)
-                        . ' DROP FOREIGN KEY '
-                        . PMA_backquote($existrel_innodb[$master_field]['constraint']);
-                $sql_query .= ';';
-                $display_query .= $sql_query . "\n";
-            }
+            $sql_query  = 'ALTER TABLE ' . PMA_backquote($table)
+                    . ' DROP FOREIGN KEY '
+                    . PMA_backquote($existrel_innodb[$master_field]['constraint']);
+            $sql_query .= ';';
+            $display_query .= $sql_query . "\n";
         } // end if... else....
 
         if (! empty($sql_query)) {
@@ -407,11 +403,8 @@ if ($col_rs && PMA_DBI_num_rows($col_rs) > 0) {
         }
         echo '</th>';
     }
-    if ($tbl_type=='INNODB') {
+    if ($tbl_type == 'INNODB') {
         echo '<th colspan="2">InnoDB';
-        if (PMA_MYSQL_INT_VERSION < 40013) {
-            echo '(**)';
-        }
         echo '</th>';
     }
     ?>
@@ -558,12 +551,6 @@ if ($col_rs && PMA_DBI_num_rows($col_rs) > 0) {
     <?php
 } // end if (we have columns in this table)
 
-if ($tbl_type === 'INNODB' && PMA_MYSQL_INT_VERSION < 40013) {
-    echo '<div class="warning">'
-        .'** ' . sprintf($strUpgrade, 'MySQL', '4.0.13')
-        .'</div>';
-}
-
 /**
  * Displays the footer
  */
diff --git a/tbl_select.php b/tbl_select.php
index 3aa33e5e5..d6c5acb7a 100644
--- a/tbl_select.php
+++ b/tbl_select.php
@@ -51,7 +51,7 @@ if (!isset($param) || $param[0] == '') {
     $err_url   = $goto . '?' . PMA_generate_common_url($db, $table);
 
     // Gets the list and number of fields
-    $result     = PMA_DBI_query('SHOW' . (PMA_MYSQL_INT_VERSION >= 40100 ? ' FULL' : '') . ' FIELDS FROM ' . PMA_backquote($table) . ' FROM ' . PMA_backquote($db) . ';', null, PMA_DBI_QUERY_STORE);
+    $result     = PMA_DBI_query('SHOW FULL FIELDS FROM ' . PMA_backquote($table) . ' FROM ' . PMA_backquote($db) . ';', null, PMA_DBI_QUERY_STORE);
     $fields_cnt = PMA_DBI_num_rows($result);
     // rabue: we'd better ensure, that all arrays are empty.
     $fields_list = $fields_null = $fields_type = $fields_collation = array();
@@ -79,7 +79,7 @@ if (!isset($param) || $param[0] == '') {
         }
         $fields_null[] = $row['Null'];
         $fields_type[] = $type;
-        $fields_collation[] = PMA_MYSQL_INT_VERSION >= 40100 && !empty($row['Collation']) && $row['Collation'] != 'NULL'
+        $fields_collation[] = !empty($row['Collation']) && $row['Collation'] != 'NULL'
                           ? $row['Collation']
                           : '';
     } // end while
@@ -186,7 +186,7 @@ while (list($operator) = each($GLOBALS['cfg']['UnaryOperators'])) {
     <thead>
     <tr><th><?php echo $strField; ?></th>
         <th><?php echo $strType; ?></th>
-        <?php echo PMA_MYSQL_INT_VERSION >= 40100 ? '<th>' . $strCollation . '</th>' . "\n" : ''; ?>
+        <th><?php echo $strCollation; ?></th>
         <th><?php echo $strOperator; ?></th>
         <th><?php echo $strValue; ?></th>
     </tr>
@@ -202,8 +202,7 @@ while (list($operator) = each($GLOBALS['cfg']['UnaryOperators'])) {
         <tr class="<?php echo $odd_row ? 'odd' : 'even'; $odd_row = ! $odd_row; ?>">
             <th><?php echo htmlspecialchars($fields_list[$i]); ?></th>
             <td><?php echo $fields_type[$i]; ?></td>
-            <?php echo PMA_MYSQL_INT_VERSION >= 40100 ? '<td>'
-                . $fields_collation[$i] . '</td>' . "\n" : ''; ?>
+            <td><?php echo $fields_collation[$i]; ?></td>
             <td><select name="func[]">
         <?php
         if (strncasecmp($fields_type[$i], 'enum', 4) == 0) {
@@ -251,7 +250,7 @@ while (list($operator) = each($GLOBALS['cfg']['UnaryOperators'])) {
             // here, the 4th parameter is empty because there is no current
             // value of data for the dropdown (the search page initial values
             // are displayed empty)
-            echo PMA_foreignDropdown($foreignData['disp_row'], 
+            echo PMA_foreignDropdown($foreignData['disp_row'],
                 $foreignData['foreign_field'],
                 $foreignData['foreign_display'],
                 '', $GLOBALS['cfg']['ForeignKeyMaxLimit']);
@@ -288,7 +287,7 @@ while (list($operator) = each($GLOBALS['cfg']['UnaryOperators'])) {
         ?>
                     <script type="text/javascript">
                     //<![CDATA[
-                    document.write('<a title="<?php echo $strCalendar;?>" href="javascript:openCalendar(\'<?php echo PMA_generate_common_url();?>\', \'insertForm\', \'field_<?php echo ($i); ?>\', \'<?php echo (PMA_MYSQL_INT_VERSION >= 40100 && substr($type, 0, 9) == 'timestamp') ? 'datetime' : substr($type, 0, 9); ?>\')"><img class="calendar" src="<?php echo $pmaThemeImage; ?>b_calendar.png" alt="<?php echo $strCalendar; ?>"/></a>');
+                    document.write('<a title="<?php echo $strCalendar;?>" href="javascript:openCalendar(\'<?php echo PMA_generate_common_url();?>\', \'insertForm\', \'field_<?php echo ($i); ?>\', \'<?php echo (substr($type, 0, 9) == 'timestamp') ? 'datetime' : substr($type, 0, 9); ?>\')"><img class="calendar" src="<?php echo $pmaThemeImage; ?>b_calendar.png" alt="<?php echo $strCalendar; ?>"/></a>');
                     //]]>
                     </script>
         <?php
@@ -349,9 +348,7 @@ else {
         $cnt_func = count($func);
         reset($func);
         while (list($i, $func_type) = each($func)) {
-            if (PMA_MYSQL_INT_VERSION >= 40100) {
-                list($charsets[$i]) = explode('_', $collations[$i]);
-            }
+            list($charsets[$i]) = explode('_', $collations[$i]);
             if (@$GLOBALS['cfg']['UnaryOperators'][$func_type] == 1) {
                 $fields[$i] = '';
                 $w[] = PMA_backquote(urldecode($names[$i])) . ' ' . $func_type;
@@ -377,13 +374,13 @@ else {
                         $parens_close = '';
                     }
                     $enum_where = '\'' . PMA_sqlAddslashes($fields[$i][0]) . '\'';
-                    if (PMA_MYSQL_INT_VERSION >= 40100 && $charsets[$i] != $charset_connection) {
+                    if ($charsets[$i] != $charset_connection) {
                         $enum_where = 'CONVERT(_utf8 ' . $enum_where . ' USING ' . $charsets[$i] . ') COLLATE ' . $collations[$i];
                     }
                     for ($e = 1; $e < $enum_selected_count; $e++) {
                         $enum_where .= ', ';
                         $tmp_literal = '\'' . PMA_sqlAddslashes($fields[$i][$e]) . '\'';
-                        if (PMA_MYSQL_INT_VERSION >= 40100 && $charsets[$i] != $charset_connection) {
+                        if ($charsets[$i] != $charset_connection) {
                             $tmp_literal = 'CONVERT(_utf8 ' . $tmp_literal . ' USING ' . $charsets[$i] . ') COLLATE ' . $collations[$i];
                         }
                         $enum_where .= $tmp_literal;
@@ -407,7 +404,7 @@ else {
                 // But if the field's type is VARBINARY, it has no charset
                 // and $charsets[$i] is empty, so we cannot generate a CONVERT
 
-                if (PMA_MYSQL_INT_VERSION >= 40101 && !empty($charsets[$i]) && $charsets[$i] != $charset_connection && preg_match('@char|binary|blob|text|set@i', $types[$i])) {
+                if (!empty($charsets[$i]) && $charsets[$i] != $charset_connection && preg_match('@char|binary|blob|text|set@i', $types[$i])) {
                     $prefix = 'CONVERT(_utf8 ';
                     $suffix = ' USING ' . $charsets[$i] . ') COLLATE ' . $collations[$i];
                 } else {
diff --git a/tbl_structure.php b/tbl_structure.php
index 06d5c773d..9616a3ab3 100644
--- a/tbl_structure.php
+++ b/tbl_structure.php
@@ -166,7 +166,7 @@ $i = 0;
     <th id="th<?php echo ++$i; ?>"></th>
     <th id="th<?php echo ++$i; ?>"><?php echo $strField; ?></th>
     <th id="th<?php echo ++$i; ?>"><?php echo $strType; ?></th>
-<?php echo PMA_MYSQL_INT_VERSION >= 40100 ? '    <th id="th' . ++$i . '">' . $strCollation . '</th>' . "\n" : ''; ?>
+    <th id="th<?php echo ++$i; ?>"><?php echo $strCollation; ?></th>
     <th id="th<?php echo ++$i; ?>"><?php echo $strAttr; ?></th>
     <th id="th<?php echo ++$i; ?>"><?php echo $strNull; ?></th>
     <th id="th<?php echo ++$i; ?>"><?php echo $strDefault; ?></th>
@@ -195,12 +195,10 @@ if ($GLOBALS['cfg']['ShowPropertyComments']) {
 
     //$cfgRelation = PMA_getRelationsParam();
 
-    if ($cfgRelation['commwork'] || PMA_MYSQL_INT_VERSION >= 40100) {
-        $comments_map = PMA_getComments($db, $table);
+    $comments_map = PMA_getComments($db, $table);
 
-        if ($cfgRelation['mimework'] && $cfg['BrowseMIME']) {
-            $mime_map = PMA_getMIME($db, $table, true);
-        }
+    if ($cfgRelation['mimework'] && $cfg['BrowseMIME']) {
+        $mime_map = PMA_getMIME($db, $table, true);
     }
 }
 
@@ -252,29 +250,26 @@ while ($row = PMA_DBI_fetch_assoc($fields_rs)) {
         $zerofill     = stristr($row['Type'], 'zerofill');
     }
 
-    // rabus: Divide charset from the rest of the type definition (MySQL >= 4.1)
     unset($field_charset);
-    if (PMA_MYSQL_INT_VERSION >= 40100) {
-        if ((substr($type, 0, 4) == 'char'
-            || substr($type, 0, 7) == 'varchar'
-            || substr($type, 0, 4) == 'text'
-            || substr($type, 0, 8) == 'tinytext'
-            || substr($type, 0, 10) == 'mediumtext'
-            || substr($type, 0, 8) == 'longtext'
-            || substr($type, 0, 3) == 'set'
-            || substr($type, 0, 4) == 'enum'
-            ) && !$binary) {
-            if (strpos($type, ' character set ')) {
-                $type = substr($type, 0, strpos($type, ' character set '));
-            }
-            if (!empty($row['Collation'])) {
-                $field_charset = $row['Collation'];
-            } else {
-                $field_charset = '';
-            }
+    if ((substr($type, 0, 4) == 'char'
+        || substr($type, 0, 7) == 'varchar'
+        || substr($type, 0, 4) == 'text'
+        || substr($type, 0, 8) == 'tinytext'
+        || substr($type, 0, 10) == 'mediumtext'
+        || substr($type, 0, 8) == 'longtext'
+        || substr($type, 0, 3) == 'set'
+        || substr($type, 0, 4) == 'enum'
+        ) && !$binary) {
+        if (strpos($type, ' character set ')) {
+            $type = substr($type, 0, strpos($type, ' character set '));
+        }
+        if (!empty($row['Collation'])) {
+            $field_charset = $row['Collation'];
         } else {
             $field_charset = '';
         }
+    } else {
+        $field_charset = '';
     }
 
     // garvin: Display basic mimetype [MIME]
@@ -338,7 +333,7 @@ while ($row = PMA_DBI_fetch_assoc($fields_rs)) {
     </td>
     <th nowrap="nowrap"><label for="checkbox_row_<?php echo $rownum; ?>"><?php echo $field_name; ?></label></th>
     <td<?php echo $type_nowrap; ?>><bdo dir="ltr" xml:lang="en"><?php echo $type; echo $type_mime; ?></bdo></td>
-<?php echo PMA_MYSQL_INT_VERSION >= 40100 ? '    <td>' . (empty($field_charset) ? '' : '<dfn title="' . PMA_getCollationDescr($field_charset) . '">' . $field_charset . '</dfn>') . '</td>' . "\n" : '' ?>
+    <td><?php echo (empty($field_charset) ? '' : '<dfn title="' . PMA_getCollationDescr($field_charset) . '">' . $field_charset . '</dfn>'); ?></td>
     <td nowrap="nowrap" style="font-size: 70%"><?php echo $attribute; ?></td>
     <td><?php echo (($row['Null'] == 'YES') ? $strYes : $strNo); ?></td>
     <td nowrap="nowrap"><?php if (isset($row['Default'])) { echo $row['Default']; } ?></td>
@@ -690,7 +685,7 @@ if ($cfg['ShowStats']) {
     </tr>
         <?php
     }
-    if (PMA_MYSQL_INT_VERSION >= 40100 && !empty($tbl_collation)) {
+    if (!empty($tbl_collation)) {
         ?>
     <tr class="<?php echo ($odd_row = !$odd_row) ? 'odd' : 'even'; ?>">
         <th class="name"><?php echo $strCollation; ?></th>