diff --git a/CHANGELOG.md b/CHANGELOG.md
index 16f1054..9dc8d96 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## v4.2.1 - 2024-12-04
+
+**Enhancements**
+
+* Return HTTP status 400 if missing JWT by @kitloong in [#13](https://github.com/labstack/echo-jwt/pull/13)
+* Update dependencies and CI flow by @aldas in [#21](https://github.com/labstack/echo-jwt/pull/21), [#24](https://github.com/labstack/echo-jwt/pull/24), [#27](https://github.com/labstack/echo-jwt/pull/27)
+* Improve readme formatting by @aldas in [#25](https://github.com/labstack/echo-jwt/pull/25)
+
+
 ## v4.2.0 - 2023-01-26
 
 **Breaking change:** [JWT](github.com/golang-jwt/jwt) has been upgraded to `v5`. Check/test all your code involved with JWT tokens/claims. Search for `github.com/golang-jwt/jwt/v4` 
diff --git a/README.md b/README.md
index db77f2c..cf4e19c 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,9 @@ as JWT implementation.
 This repository does not use semantic versioning. MAJOR version tracks which Echo version should be used. MINOR version
 tracks API changes (possibly backwards incompatible) and PATCH version is incremented for fixes.
 
+NB: When `golang-jwt` MAJOR version changes this library will release MINOR version with **breaking change**. Always 
+add at least one integration test in your project.
+
 For Echo `v4` use `v4.x.y` releases.
 Minimal needed Echo versions:
 * `v4.0.0` needs Echo `v4.7.0+`