diff --git a/CHANGES.md b/CHANGES.md
index d887943..e5dcf22 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,14 @@
+## v2.8.2
+  * Solves issue #44 - postgresql compatibility issue during upgrade process, previous fix was still buggy.
+
+## v2.8.1
+  * Solves issue #44 - postgresql compatibility issue during upgrade process
+
+## v2.8
+  * Solves Issue #38 - thanks to Giorgio Riva for the fix.
+
 ## v2.7
-    * Solves Issue #37 - thanks to nrosenquist for fix
+  * Solves Issue #37 - thanks to nrosenquist for fix
 
 ## v2.5
   * Solves https://github.com/emmarichardson/local_autogroup/issues/16 default group by
diff --git a/db/upgrade.php b/db/upgrade.php
index 77fa2f0..965e2fc 100644
--- a/db/upgrade.php
+++ b/db/upgrade.php
@@ -90,9 +90,9 @@ function xmldb_local_autogroup_upgrade($oldversion) {
         upgrade_plugin_savepoint(true, 2019010300, 'local', 'autogroup');
     }
 
-    if ($oldversion < 2023032302.01) {
+    if ($oldversion < 2023040600) {
         $DB->delete_records_select('local_autogroup_manual', 'groupid IN (SELECT id FROM {groups} WHERE idnumber NOT LIKE ?)', ['autogroup|%']);
-        upgrade_plugin_savepoint(true, 2023032302.01, 'local', 'autogroup');
+        upgrade_plugin_savepoint(true, 2023040600, 'local', 'autogroup');
     }
 
     return true;
diff --git a/version.php b/version.php
index 786c193..5466a8e 100644
--- a/version.php
+++ b/version.php
@@ -28,8 +28,8 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version = 2023032202.01;
+$plugin->version = 2023040600;
 $plugin->requires = 2013111800.00;       // Requires this Moodle version (2.7).
-$plugin->release = '2.8.1';                // Plugin release.
+$plugin->release = '2.8.2';                // Plugin release.
 $plugin->component = 'local_autogroup';  // Full name of the plugin (used for diagnostics).
 $plugin->maturity = MATURITY_STABLE;