diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6ce1ab77..555aa7bb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,14 @@
 ChangeLog
 =========
 
+5.0.0 (2026-09-30)
+------------------
+* #118 Merge upstream sabre-io/vobject 5.0.0
+
+This major release requires PHP 8.2 or higher and declares parameter and
+return types across the codebase. Callers must pass the correct types.
+Stay on 4.35.x until your project runs PHP 8.2+.
+
 4.35.0 (2026-09-30)
 -------------------
 * #116 Merge upstream master 2026-05-31 (4.6.0)
diff --git a/lib/Version.php b/lib/Version.php
index ddf929ce..e851a650 100644
--- a/lib/Version.php
+++ b/lib/Version.php
@@ -14,5 +14,5 @@ class Version
     /**
      * Full version number.
      */
-    public const VERSION = '4.35.0';
+    public const VERSION = '5.0.0';
 }