diff --git a/src/Standard/Standard_Version.hxx b/src/Standard/Standard_Version.hxx
index 74557ca577..2d83a1ce63 100755
--- a/src/Standard/Standard_Version.hxx
+++ b/src/Standard/Standard_Version.hxx
@@ -38,20 +38,20 @@
 
 // Primary definitions
 #define OCC_VERSION_MAJOR         6
-#define OCC_VERSION_MINOR         5
-#define OCC_VERSION_MAINTENANCE   5
+#define OCC_VERSION_MINOR         6
+#define OCC_VERSION_MAINTENANCE   0
 
 //! This macro must be commented in official release, and set to non-empty 
 //! string in other situations, to identify specifics of the version, e.g.:
 //! - "dev" for official (certified) version (master branch) between releases
 //! - "beta..." or "rc..." for beta releases or release candidates
 //! - "project..." for version containing project-specific fixes
-#define OCC_VERSION_DEVELOPMENT   "dev"
+#define OCC_VERSION_DEVELOPMENT   "beta"
 
 // Derived (manually): version as real and string (major.minor)
-#define OCC_VERSION               6.5
-#define OCC_VERSION_STRING       "6.5"
-#define OCC_VERSION_COMPLETE     "6.5.5"
+#define OCC_VERSION               6.6
+#define OCC_VERSION_STRING       "6.6"
+#define OCC_VERSION_COMPLETE     "6.6.0"
 
 //! Derived: extended version as string ("major.minor.maintenance.dev")
 #ifdef OCC_VERSION_DEVELOPMENT