diff --git a/src/bmconst.h b/src/bmconst.h
index 6a4d300a..21609a31 100644
--- a/src/bmconst.h
+++ b/src/bmconst.h
@@ -223,13 +223,13 @@ enum null_support
 */
 template<bool T> struct _copyright
 {
-    static const char _p[];
-    static const unsigned _v[3];
+    static const char _p[]; ///< Version as a text
+    static const unsigned _v[3]; ///< MAJOR.MINOR.PATCH version components
 };
 
 template<bool T> const char _copyright<T>::_p[] = 
-    "BitMagic C++ Library. v.7.3.3 (c) 2002-2021 Anatoliy Kuznetsov.";
-template<bool T> const unsigned _copyright<T>::_v[3] = {7, 3, 3};
+    "BitMagic C++ Library. v.7.4.0 (c) 2002-2021 Anatoliy Kuznetsov.";
+template<bool T> const unsigned _copyright<T>::_v[3] = {7, 4, 0};