General:

*         Upgraded Steamworks SDK to v1.29
*         Fixed mod compatibility problem with Multiplayer Base that was introduced in September.
*         In Hammer, while using the Vertex Tool, pressing CTRL+B will snap selected vertices to the grid.

Virtual Reality:
*         Mods that support virtual reality now need to have a line in gameinfo.txt that says “supportsvr 1”. This indicates to gameui and engine that certain UI should be enabled.
*         VR-enabled mods will now start up in VR mode when launched from Steam’s VR mode.

Windows:
*         Upgraded to Visual Studio 2013. If you need to build projects for VS 2010, add /2010 to your VPC command line.

OSX:
*         Upgraded to XCode 5.

1 files changed, 1 insertions, 1 deletions

diff --git a/mp/src/game/client/c_func_breakablesurf.cpp b/mp/src/game/client/c_func_breakablesurf.cpp
index 03176315..3118cd5e 100644
--- a/mp/src/game/client/c_func_breakablesurf.cpp
+++ b/mp/src/game/client/c_func_breakablesurf.cpp
@@ -154,7 +154,7 @@ private:
 		Assert( type < NUM_EDGE_STYLES );
 		Assert( type >= 0 );
 		// Clear old value
-		m_nPanelBits[ w ][ h ] &= ( ~0x03 << 2 );
+		m_nPanelBits[ w ][ h ] &= 0xF0; // ( ~0x03 << 2 ); Left shifting a negative value has undefined behavior. Use the constant 0xF0 instead.
 		// Insert new value
 		m_nPanelBits[ w ][ h ] |= ( type << 2 );
 	}