-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
-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 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
-Fixed deserializing null values into DataTables
-Fixed error when deserializing readonly IEnumerable<T> array properties
-Fixed not including type name for byte[] values
-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 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
-Added TypeNameAssemblyFormat property to JsonSerializer. Property controls whether .NET type names are written with a full or partial assembly name
-Added TypeNameHandling to JsonProperty attribute. Allows a type names to be included on an individual property basis
-Fixed serializing HashSet<T>
-Additional permission demands added to DynamicCodeGeneration flag
-Fix DynamicReflectionDelegateFactory erroring when calling static methods
-Fix CustomCreationConverter to return null when converting a null JSON value
-Added WriteObjectId to BsonWriter
-Added BsonObjectId and BsonObjectIdConverter classes
-Added KeyValuePairConverter
-Added DynamicCodeGeneration flag to DefaultContractResolver
-Changed JsonConverter.ReadJson to add an extra parameter: currentValue
James Newton-King