-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
-Fixed poor error message when dynamic type cannot be created during deserialization
-Fixed error when setting a null value on a dynamic type during deserialization
-Fixed JsonTextReader.ReadAsDecimal not attempting to convert string values to decimal
-Added IFormattable to JValue
-Changed JValue ToString to call ToString on the internal value
-Fixed code emit error when deserializing interfaces in certain situations
-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
-Move test serialization objects to TestObjects namespace
-Fixed JsonConvert to always write a floating point number with a decimal place
-Changed Type values to serialize and deserialize to type name string
-Fixed JsonWriter to allow objects and arrays to be written in a constructor
-Added JsonContainerAttribute with Id, Title and Description members. JsonObject and JsonArray inherit from this attribute
-Added JsonArrayAttribute. Has flag to control whether array can contain null items.
-Added IsRequired to JsonProperty
-Replaced protected method GetSerializableMembers with GetMemberMappings on JsonSerializer
-Fixed QuoteChar not getting set when parsing property name
-Added Load(JsonReader) to JProperty, JConstructor
-Fixed error when populating JProperty with content from collection
-Added the ability for JsonTokenWriter to write individual values as well as arrays and objects
-Added CreateReader to JToken
-Added FromObject to JToken
-Added ReadFrom to JToken
-Added JTokenEqualityComparer
-Added additional validation to new IDictionary/ICollection methods on JObject/JArray
-Changed JObject so that properties must have a unique name
-Changed remaining IConvertible calls to use ToXXX methods instead of casting
-Fixed many bugs in new IDictionary/ICollection methods on JObject/JArray
-Fixed AddFirst when no existing children
James Newton-King