diff --git a/CHANGELOG.md b/CHANGELOG.md
index 14d296855..817cf7d3e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+# 6.5.1
+
+Version 6.5.1.0
+
+XFTP client:
+- backwards compatible file header decoding.
+
 # 6.5.0
 
 Version 6.5.0.17
diff --git a/simplexmq.cabal b/simplexmq.cabal
index 72c936eff..66cd43b17 100644
--- a/simplexmq.cabal
+++ b/simplexmq.cabal
@@ -1,7 +1,7 @@
 cabal-version: 1.12
 
 name:           simplexmq
-version:        6.5.0.17
+version:        6.5.1.0
 synopsis:       SimpleXMQ message broker
 description:    This package includes <./docs/Simplex-Messaging-Server.html server>,
                 <./docs/Simplex-Messaging-Client.html client> and