-Added support for specifying the root type when serialize JSON to use with TypeNameHandling.Auto
-Fixed recursively reading type wrapper objects when deserializing
-Fixed bad JSON in an array with error handling creating an infinite loop
-JsonTextReader no longer returns no content after consecutive underlying content read failures
-Changed default DefaultContractResolver.IgnoreSerializableAttribute to true
-Fixed MaxDepth on JsonReader recursively throwing error
-Fixed SerializationBinder.BindToName not being called with full assembly names
-Fixed JsonTextReader reading from a slow stream
-Fixed CultureInfo not being overridden on JsonSerializerProxy
-Fixed full trust security check in .NET 2.0 & .NET 3.5
-Improved writing JSON with indent performance
-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 collection type on JsonArrayContract to public
-Changed dictionary key type and dictionary value type on JsonDictionaryContract to public
-Fixed error handling when failing to parse array content
-Fixed error handling when there are missing required properties
-Changed JsonReaders to set TokenType to JsonToken.None after finishing content
-Changed the ReadAsXXX methods to return null instead of throwing an error when there is no content
-Improved JsonSerializer to cache contract/converters where possible to improve performance
-Improved JsonTextReader error message when additional JSON content found
-Fixed internal exception thrown when deserializing Decimal/DateTimeOffset/Byte lists
-Fixed various JsonTextReader bugs
-Added Load and Parse helper methods to JToken
-Fixed performance issues when deserializing with partial type names
-Fixed deserializing certain decimal values on classes with non-default constructors
-Fix error message when attempting to deserialize custom dictionary with no default constructor
-Fix serializing private base members marked with JsonProperty attribute
-Fix performance issue when deserializing to object member
-Fix dictionary key encoding when serializing
-Fix WrappedDictionary being set to a property when deserializing
-Fix Silverlight serialization security error
-Added BsonReader, BsonWriter
-Added support for reading and writing byte arrays to JsonReader, JsonWriter and LINQ to JSON classes
-Added ReadAsBytes to JsonReader
-Changed Silverlight build serializer to look for a TypeConverter
-Changed .NET build to not rely on System.ComponentModel.DataAnnotations assembly to support .NET 4.0 client profile
-Remove DateTimeOffset stand-in from Compact Framework build
-Fixed .NET 2.0 build to run on environments without .NET 2.0 SP1
-Fixed deserialization to always use a new value created from a JsonConverter
-Fixed XmlNodeConverter to support converting comments in JSON
James Newton-King