-Changed serializing ISerializable types under partial trust to error to fix security issue
-Fixed LinqBridge collision error in .NET 2.0 by moving types to a different namespace
-Fixed JObject.Keys error when object has no items
-Added DateTimeZoneHandling to control reading and writing DateTime time zone details
-Added reader/writer specific Formatting, DateFormatHandling and DateTimeZoneHandling to JsonSerializerSettings
-Added feature of reader/writer specific settings to be set on JsonReader/JsonWriter when serializing
-Added ReadAsDate to JsonReader
-Added ReadAsString to JsonReader
-Changed JsonTextReader to automatically read ISO strings as dates
-Refactored ReadAsXXX methods and reduce code redundancy
-Removed unused JsonDateTimeSerializationMode
-Changed class converter to be resolved from contract
-Changed built in converters to be resolved once when the contract is created. Big performance gain!
-Added JPath and SelectToken to JToken
-Fixed schema id not being written for collections
-Fixed TimeSpan serialization on Compact Framework
-Fixed unicode line break string encoding