From 2e17bda18ee8f8b5fe129e422ac1be6a13b4b458 Mon Sep 17 00:00:00 2001
From: Coleman Watts <coleman@civicrm.org>
Date: Mon, 21 Feb 2022 17:25:46 -0500
Subject: [PATCH] Add deprecation notice to APIv3 Explorer

---
 templates/CRM/Admin/Page/APIExplorer.tpl | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/templates/CRM/Admin/Page/APIExplorer.tpl b/templates/CRM/Admin/Page/APIExplorer.tpl
index 3f96d7e481..6e97653060 100644
--- a/templates/CRM/Admin/Page/APIExplorer.tpl
+++ b/templates/CRM/Admin/Page/APIExplorer.tpl
@@ -218,7 +218,16 @@
   }
   {/literal}
 </style>
-
+<div class="messages status no-popup">
+  <p>
+    {icon icon="fa-info-circle"}{/icon}
+    <strong>{ts}Deprecation Notice{/ts}</strong>
+  </p>
+  <p>
+    {ts}APIv3 is the legacy version of CiviCRM's API. While still supported, it is not recommended for use in new projects.{/ts}
+    <a href="{crmURL p='civicrm/api4'}">{icon icon="fa-hand-o-right"}{/icon} {ts}Switch to APIv4{/ts}</a>
+  </p>
+</div>
 <div class="crm-block crm-content-block">
 <div id="mainTabContainer">
   <ul>
-- 
2.25.1