diff --git a/CRM/Moregreetings/Upgrader.php b/CRM/Moregreetings/Upgrader.php
index 6d478af..56591b5 100644
--- a/CRM/Moregreetings/Upgrader.php
+++ b/CRM/Moregreetings/Upgrader.php
@@ -43,4 +43,21 @@ public function upgrade_5001() {
     return TRUE;
   }
 
+
+  /**
+   * Make sure users get a warning about the switch to APIv4
+   *
+   * @return bool TRUE on success
+   * @throws Exception
+   */
+  public function upgrade_5002() {
+    CRM_Core_Session::setStatus(
+      E::ts('MoreGreetings has switched to APIv4, which means that some tokens might not work any more.') . '<br/><br/>' .
+           E::ts('An example would be the defunct <code>$individual_prefix</code> token, which can be substituted by the <code>prefix_id:label</code>') . '<br/><br/>'.
+           E::ts('Make sure you test your greeting templates well before you continue using MoreGreetings.'),
+      E::ts("Warning"),
+      'alert', ['expires' => 0]);
+    return TRUE;
+  }
+
 }
diff --git a/info.xml b/info.xml
index f61f49a..a7e7fbc 100644
--- a/info.xml
+++ b/info.xml
@@ -14,9 +14,9 @@
     <url desc="Support">https://github.com/systopia/de.systopia.moregreetings/issues</url>
     <url desc="Licensing">http://www.gnu.org/licenses/agpl-3.0.html</url>
   </urls>
-  <releaseDate>2024-09-19</releaseDate>
-  <version>1.2.0</version>
-  <develStage>stable</develStage>
+  <releaseDate></releaseDate>
+  <version>1.3-dev</version>
+  <develStage>dev</develStage>
   <compatibility>
     <ver>5.38</ver>
   </compatibility>