diff --git a/nel/include/nel/sound/audio_mixer_user.h b/nel/include/nel/sound/audio_mixer_user.h
index a58075e0e..03393cf2f 100644
--- a/nel/include/nel/sound/audio_mixer_user.h
+++ b/nel/include/nel/sound/audio_mixer_user.h
@@ -42,7 +42,7 @@
 
 // Current version is 2, Ryzom Live uses 1
 // Provided to allow compatibility with old binary files
-#define NLSOUND_SHEET_VERSION_BUILT 1
+#define NLSOUND_SHEET_VERSION_BUILT 2
 
 namespace NLLIGO {
 	class CLigoConfig;
diff --git a/nel/src/3d/mesh_base.cpp b/nel/src/3d/mesh_base.cpp
index fdb4d6c8f..e31985ca0 100644
--- a/nel/src/3d/mesh_base.cpp
+++ b/nel/src/3d/mesh_base.cpp
@@ -172,6 +172,8 @@ void	CMeshBase::serialMeshBase(NLMISC::IStream &f)
 	 * ***********************************************/
 
 	/*
+	Version 10:
+		- Ryzom Core release check
 	Version 9:
 		- _CollisionMeshGeneration
 	Version 8:
@@ -194,7 +196,7 @@ void	CMeshBase::serialMeshBase(NLMISC::IStream &f)
 	Version 0:
 		- 1st version.
 	*/
-	sint ver = f.serialVersion(9);
+	sint ver = f.serialVersion(10);
 
 	if (ver >= 2)
 	{
diff --git a/nel/src/3d/zone.cpp b/nel/src/3d/zone.cpp
index 029f6da81..ebef25b57 100644
--- a/nel/src/3d/zone.cpp
+++ b/nel/src/3d/zone.cpp
@@ -442,6 +442,8 @@ void			CZone::serial(NLMISC::IStream &f)
 	 *	It can be loaded/called through CAsyncFileManager for instance
 	 * ***********************************************/
 	/*
+	Version 5:
+		- Ryzom Core release check
 	Version 4:
 		- PointLights
 	Version 3:
@@ -453,7 +455,7 @@ void			CZone::serial(NLMISC::IStream &f)
 	Version 0:
 		- base verison.
 	*/
-	uint	ver= f.serialVersion(4);
+	uint	ver= f.serialVersion(5);
 
 	// No more compatibility before version 3
 	if (ver<3)