diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4947e49..b52894b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [unreleased]
 
+## [1.4.0] - 2021-08-13
+
 ### Added
 
  - `MATCHES`/`MATCHES99` to know where is a macro and where is a function.
diff --git a/datatype99.h b/datatype99.h
index 26c4c0c..4da08ce 100644
--- a/datatype99.h
+++ b/datatype99.h
@@ -93,7 +93,7 @@ SOFTWARE.
 #define DATATYPE99_RECORD_DERIVE_dummy_IMPL(...) ML99_empty()
 
 #define DATATYPE99_MAJOR 1
-#define DATATYPE99_MINOR 3
+#define DATATYPE99_MINOR 4
 #define DATATYPE99_PATCH 0
 
 // } (Various public stuff)