diff --git a/EgtLogger.h b/EgtLogger.h
index 24a52a7..3d44e0a 100644
--- a/EgtLogger.h
+++ b/EgtLogger.h
@@ -1,13 +1,13 @@
 //----------------------------------------------------------------------------
-//  EgalTech    2013-2013
+//  EgalTech    2013-2023
 //----------------------------------------------------------------------------
-// File : EgtLogger.h      Data : 06.12.13          Versione : 1.4a4
+// File : EgtLogger.h      Data : 15.12.23          Versione : 2.5l3
 // Contenuto : Classi per logger.
 //
 //
 //
 // Modifiche : 06.12.13 DS Creazione modulo.
-//
+//             15.12.23 DS Ora default è thread safe.
 //
 //----------------------------------------------------------------------------
 
@@ -76,7 +76,7 @@ namespace egtlogger
          } ;
 
       public :
-         Logger( LogLevel nLevel, const char* szName, bool bThreadSafe = false,
+         Logger( LogLevel nLevel, const char* szName, bool bThreadSafe = true,
                  int nLoggableItems = LI_DATETIME | LI_LOGGERNAME | LI_LOGGERLEVEL | LI_FUNCTION | LI_LINENUMBER) 
             : m_nLevel( nLevel), m_name( szName), m_threadProtect( bThreadSafe), m_loggableItem( nLoggableItems)
          {}