diff --git a/EGkSurfTriMesh.h b/EGkSurfTriMesh.h
index 37e61c7..ca0e9fb 100644
--- a/EGkSurfTriMesh.h
+++ b/EGkSurfTriMesh.h
@@ -1,7 +1,7 @@
 //----------------------------------------------------------------------------
-//  EgalTech 2014-2024
+//  EgalTech 2014-2025
 //----------------------------------------------------------------------------
-// File : EGkSurfTriMesh.h      Data : 05.03.24          Versione : 2.6c2
+// File : EGkSurfTriMesh.h      Data : 28.03.25          Versione : 2.7c4
 // Contenuto : Dichiarazione della interfaccia ISurfTriMesh.
 //
 //
@@ -50,6 +50,7 @@ class __declspec( novtable) ISurfTriMesh : public ISurf
       virtual bool RemoveTriangle( int nId) = 0 ;
       virtual bool AdjustTopology( void) = 0 ;
       virtual bool CreateByFlatContour( const PolyLine& PL) = 0 ;
+      virtual bool CreateByPolygonWithHoles( const POLYLINEVECTOR& vPL) = 0 ;
       virtual bool CreateByExtrusion( const PolyLine& PL, const Vector3d& vtExtr) = 0 ;
       virtual bool CreateByPointCurve( const Point3d& ptP, const PolyLine& PL) = 0 ;
       virtual bool CreateByTwoCurves( const PolyLine& PL1, const PolyLine& PL2, int nRuledType) = 0 ;
diff --git a/EMkMachiningGeoConst.h b/EMkMachiningGeoConst.h
index e765599..1ef57fd 100644
--- a/EMkMachiningGeoConst.h
+++ b/EMkMachiningGeoConst.h
@@ -41,8 +41,10 @@ static std::string MCH_PATH = "P" ;
 static std::string MCH_CL_CLIMB = "CLIMB" ;
 static std::string MCH_CL_RISE = "RISE" ;
 static std::string MCH_CL_HOME = "HOME" ;
+static std::string MCH_CL_SAFEIN = "SI" ;
 static std::string MCH_CL_LEADIN = "LI" ;
 static std::string MCH_CL_LEADOUT = "LO" ;
+static std::string MCH_CL_SAFEOUT = "SO" ;
 static std::string MCH_CL_AGB_DWN = "AGBD" ;
 static std::string MCH_CL_AGB_IN = "AGBI" ;
 static std::string MCH_CL_AGB_OUT = "AGBO" ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 2587df8..1461092 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -354,6 +354,8 @@ EXE_EXPORT int  ExeCreateSurfTmPyramidFrustum( int nParentId, double dBaseDimX,
 EXE_EXPORT int  ExeCreateSurfTmConeFrustum( int nParentId, double dBaseRad, double dTopRad, double dHeight, double dLinTol) ;
 EXE_EXPORT int  ExeCreateSurfTmTriangle( int nParentId, const Point3d& ptP1, const Point3d& ptP2, const Point3d& ptP3, int nRefType) ;
 EXE_EXPORT int  ExeCreateSurfTmRectangle( int nParentId, const Point3d& ptO, const Point3d& ptL, const Point3d& ptT, int nRefType) ;
+EXE_EXPORT int  ExeCreateSurfTmByPolygon( int nParentId, const PolyLine& PL, int nRefType) ;
+EXE_EXPORT int  ExeCreateSurfTmByPolygonWithHoles( int nParentId, const POLYLINEVECTOR& vPL, int nRefType) ;
 EXE_EXPORT int  ExeCreateSurfTmByFlatContour( int nParentId, int nCrvId, double dLinTol) ;
 EXE_EXPORT int  ExeCreateSurfTmByRegion( int nParentId, const INTVECTOR& vCrvIds, double dLinTol) ;
 EXE_EXPORT int  ExeCreateSurfTmByExtrusion( int nParentId, const INTVECTOR& vCrvIds, const Vector3d& vtExtr,
diff --git a/EgtKeyCodes.h b/EgtKeyCodes.h
index 93d1d78..a5d0eb3 100644
--- a/EgtKeyCodes.h
+++ b/EgtKeyCodes.h
@@ -26,7 +26,7 @@
 
 //----------------------------------------------------------------------------
 const int KEY_BASELIB_PROD = 207 ;
-const int KEY_BASELIB_VER = 2703 ;
+const int KEY_BASELIB_VER = 2704 ;
 const int KEY_BASELIB_LEV = 1 ;
 
 //----------------------------------------------------------------------------