diff --git a/CHANGES b/CHANGES
index ced2b2b06b..bb80c6f85c 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+===== 10.0 (2022-03-08) =====
+* Make Eliom_state.Ext.discard_state more robust
+
 ===== 9.0 (2021-10-16) =====
 * compatibility with ocsigenserver.5.0.0 (outsourced Ocsipersist)
 
diff --git a/opam b/opam
index b941fc2fca..f37ab24070 100644
--- a/opam
+++ b/opam
@@ -1,6 +1,6 @@
 opam-version: "2.0"
 name: "eliom"
-version: "9.4.0"
+version: "10.0.0"
 maintainer: "dev@ocsigen.org"
 authors: "dev@ocsigen.org"
 synopsis: "Client/server Web framework"