I see that some of you have found the 2013 docs.
For your convenience, here’s a list of the new commands and Object Model methods, but with actual links 🙂

New Commands

• AddPortToICENode2 – Adds a new port at the specified location and returns an XSICollection of new port objects.
• HideAllPortValues – Hides all port values in specific container node(s).
• SetCheckerboardMode – Sets the Checkerboard mode of a particular Texture Editor view.
• TransferAllPropertiesAcrossGenOp – Added new IncludeAllClusters parameter to specify that clusters with no properties are included in the transfer

New Methods (Object Model)

• ICEAttribute.DataArray – Sets a 1D Array object containing the data defined by an attribute.
• ICEAttribute.DataArray2D – Sets a 2D Array object containing the 2D data defined by an attribute.
• XSICollection.Filter – Returns a subset of this collection as a new collection of objects matching the filter criteria.
• Clip.AddProperty2 – Creates and adds a UserDataBlob or CustomProperty to a Clip object. This method is specific to the python language.
• Geometry.AddICEAttribute – Adds and returns a new attribute data on a geometry.
• Geometry.RemoveICEAttribute – Removes a non-built-in attribute from a geometry if not required by an ICETree.
• Layout.CreateViewFromDefinitionFile2 – Creates a new View object given the path to its definition on disk. This method is similar to Layout.CreateViewFromDefinitionFile but specific to the python language.
• Layout.FindView2 – Finds an existing View object given a name in this layout. This method is similar to Layout.FindView but specific to the python language.
• Menu.AddItem2 – Adds a menu item at to end of the menu. This method is similar to Menu.AddItem but specific to the python language.
• Menu.AddCommandItem2 – Adds a menu item at the end of the menu and attaches a command. This method is similar to Menu.AddCommandItem but specific to the python language.
• Menu.AddCallbackItem2 – Adds a menu item to the end of the menu and attaches a callback function. This method is similar to Menu.AddCallbackItem but specific to the python language.
• ICENode.GetPortFromName2 – Returns the ICENodePort object that matches a specific port name. This method is similar to ICENode.GetPortFromName but specific to the python language.
• ICENode.GetPortFromIndex2 – Returns the ICENodePort object specified by a port index, group index and group instance index. This method is similar to ICENode.GetPortFromIndex but specific to the python language.
• Operator.GetPortAt – Returns the specified Port object. This method is similar to Operator.PortAt but specific to the python language.
• Operator.GetPort3 – Returns the specified Port object for the operator. This method is similar to Operator.GetPort2 but specific to the python language.
• Override.AddParameterEntry2 – Adds a new entry to override the input parameter and returns the new overriding parameter. This method is similar to Override.AddParameterEntry but specific to the python language.
• Primitive.GetGeometry3 – Returns a Geometry object containing the object’s geometry. This method is similar to Primitive.GetGeometry2 but specific to the python language.
• ProjectItem.AddICEAttribute – Adds and returns a new attribute data on this object.
• ProjectItem.RemoveICEAttribute – Removes a non-built-in attribute from a geometry if not required by an ICETree.
• SceneItem.GetPropertyFromName2 – Returns a property, given its scripting name. This method is similar to SceneItem.GetPropertyFromName but specific to the python language.
• SceneItem.GetLocalPropertyFromName2 – Returns a local property, given its scripting name. This method is similar to SceneItem.GetLocalPropertyFromName but specific to the python language.
• ShaderArrayParamDef.ItemDef2 – Returns the underlying ShaderParamDef or ShaderStructParamDef object for this array item. This method is similar to ShaderArrayParamDef.ItemDef but specific to the Python language.
• ShaderArrayParameter.Item2 – Returns the specified ShaderParameter item in this array. This method is similar to ShaderArrayParameter.Item but specific to the Python language.
• ShaderParamDefContainer.AddParamDef2 – This method is similar to ShaderParamDefContainer.AddParamDef but specific to the Python language.
• ShaderParamDefContainer.GetParamDefByName2 – Returns the ShaderParamDef that matches the specified name from this container. This method is similar to ShaderParamDefContainer.GetParamDefByName but specific to the Python language.
• ShaderParameter.Definition2 – Returns the shader parameter definition as a ShaderParamDef object. This method is similar to ShaderParameter.Definition but specific to the Python language.
• View.FindView2 – Finds an existing View object given a name. This method is similar to View.FindView but specific to the Python language.
• X3DObject.GetActivePrimitive3 – Returns the 3D object’s active Primitive for a given frame. This method is similar to X3DObject.GetActivePrimitive2 but specific to the Python language.
• XSIApplication.ActiveProject3 – Returns or sets the active XSIProject object. This method is similar to XSIApplication.ActiveProject2 but specific to the Python language.
• XSIApplication.GetObjectFromID2 – Returns the object matching the specified ID. This method is similar to XSIApplication.GetObjectFromID but specific to the python language.
• XSIFactory.CreateObjectFromPreset2 – Creates an object from a preset and optional preset family name. This method is similar to XSIFactory.CreateObjectFromPreset but specific to the Python language.
• ShaderParamDefOptions.SetReadOnly – Sets the Read Only capability of the Shader parameter.
• XSIApplication.GetCustomPropertyCount – Returns the Custom Property count for a given type.