eol v4.0

mongoKart · mongoKart · commit 55a174476e4d · 2025-05-23T10:12:46.000-05:00
diff --git a/source/whats-new.txt b/source/whats-new.txt
@@ -33,6 +33,13 @@ following versions of the {+php-library+}:
 What's New in 2.1
 -----------------
 
+.. important:: Breaking Changes
+   The {+library-short+} v2.1 release introduces the following breaking
+   changes:
+
+   - Drops support for {+mdb-server+} 4.0. The minimum supported {+mdb-server+} version is
+     4.2.
+
 The {+library-short+} v2.1 release includes the following features,
 improvements, and fixes:
 
