SPWeb.CurrentChangeToken property
SharePoint 2013
Gets the change token that is used when the next change is logged to the website.
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Property value
Type: Microsoft.SharePoint.SPChangeTokenAn SPChangeToken object that represents the change token.
You can use the value of this property to query the change log by calling the GetChanges(SPChangeToken) method. For more information, see Using the Change Log.