diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9b52ecc..b339a4d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Nothing yet
 
+## [0.40.1] - 2023-11-01
+
+### Fixed
+
+- Swap of parameters in mp4ff-decrypt
+
 ## [0.40.0] - 2023-10-28
 
 ### Added
@@ -33,6 +39,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - SPS.ChromaArrayType method
 - Makefile now builds all CLI applications with version
 
+### Changed
+
+- Removed examples/decrypt-cenc and instead made cmd/mp4ff-decrypt
+
 ## [0.39.0] - 2023-10-13
 
 ### Changed
@@ -494,7 +504,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - New unique repo name: `mp4ff`
 
-[Unreleased]: https://github.com/Eyevinn/mp4ff/compare/v0.40.0...HEAD
+[Unreleased]: https://github.com/Eyevinn/mp4ff/compare/v0.40.1...HEAD
+[0.40.1]: https://github.com/Eyevinn/mp4ff/compare/v0.40.0...v0.40.1
 [0.40.0]: https://github.com/Eyevinn/mp4ff/compare/v0.39.0...v0.40.0
 [0.39.0]: https://github.com/Eyevinn/mp4ff/compare/v0.38.0...v0.39.0
 [0.38.1]: https://github.com/Eyevinn/mp4ff/compare/v0.37.0...v0.38.0
diff --git a/mp4/version.go b/mp4/version.go
index fa5053d..b6d788b 100644
--- a/mp4/version.go
+++ b/mp4/version.go
@@ -7,8 +7,8 @@ import (
 )
 
 var (
-	commitVersion string = "v0.40.+"    // May be updated using build flags
-	commitDate    string = "1698471348" // commitDate in Epoch seconds (may be overridden using build flags)
+	commitVersion string = "v0.40.1"    // May be updated using build flags
+	commitDate    string = "1698825496" // commitDate in Epoch seconds (may be overridden using build flags)
 )
 
 // GetVersion - get version and also commitHash and commitDate if inserted via Makefile