Release v1.6.5

Author: hirrolot

CHANGELOG.md

@@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## unreleased
 
+## 1.6.5 - 2025-03-17
+
 ### Fixed
 
  - Update the minimum required CMake version to 3.10.0 due to deprecation (see [metalang99/issues/33](https://github.com/hirrolot/metalang99/issues/33)).

datatype99.h

@@ -99,7 +99,7 @@ SOFTWARE.
 
 #define DATATYPE99_MAJOR 1
 #define DATATYPE99_MINOR 6
-#define DATATYPE99_PATCH 4
+#define DATATYPE99_PATCH 5
 
 #define DATATYPE99_VERSION_COMPATIBLE(x, y, z)                                                     \
     (DATATYPE99_MAJOR == (x) &&                                                                    \