-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
-Fix BSON reader to read the old binary subtype correctly
-Added JsonNet35BinaryCompadibility to BSON reader for incorrectly written BSON binary values
-Changed JSON schema to use required flags instead of optional as defined in JSON schema spec 3.0
-Changed JSON schema to use divisibleBy instead of maxDecimals as defined in JSON schema spec 3.0
-Fixed detection of serialization specified flag properties
-Updated to latest version of NuGet
-Changed .NET 3.5 and .NET 4.0 builds to target client frameworks
-Fixed JSON Schema not raising an error for additional properties when the schema has no properties
-Added ISerializable support
-Changed dictionary serialization to fall back to ToString for keys
-Changed schema generator to use JsonContracts to determine schema information
-Fixed schema validation bugs when schema has no properties
-Fixed not marking dictionary and array schemas as nullable
-Fixed serializing generic dictionary that doesn't implement IDictionary
-Added IValueProvider, ReflectionValueProvider, DynamicValueProvider
-Added Dynamic.snk
-Added Required enum with options Default, AllowNull and Always
-Added serialization event support to Silverlight version
-Added Converter to JsonProperty for JsonConverter
-Changed IsRequired to Required enum
-Changed schema generator to allow for Required enum options
-Changed Silverlight project version to Silverlight 3
-Improved error message when JSON array encountered for object and vice-versa when deserializing
-Improved error message for converting types when deserializing
-Improved error message from getting and setting properties when serializing and deserializing
-Fixed empty string being converted to null when deserializing
-Removed dependency on Entity Framework and LINQ to SQL assemblies
-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
-Fixed decimals to always be written with a decimal place
-Replaced IMappingResolver with IContractResolver
-Renamed JsonMemberMapping to JsonProperty
-Added JsonContract, JsonObjectContract, JsonArrayContract, JsonDictionaryContract
-Added support for OnSerializing, OnSerialized, OnDeserializing, OnDeserialized callback methods
-Major refactoring of serialization internals
-Added NullValueHandling, DefaultValueHandling and ReferenceLoopHandling to JsonPropertyAttribute
-Change JsonMemberMapping from a struct to a class. Now has too many properties for a struct
-Added populating members when creating object from non default constructor
-Added case best match when deserializing properties
-Added ToString(Formatting, JsonConverters[]) overload to JToken
-Added SerializeObject(object, Formatting, JsonConverter[]) overload to JsonConvert
-Added IMappingResolver. Property added to JsonSerializer, JsonSerializerSettings, JsonSchemaGenerator
-Added CamelCaseMappingResolver
-Added line details to JsonTextReader exception messages and JsonValidatingReader errors
-Change JsonSchemaGenerator to disable additional properties on sealed classes
-Fixed JsonSchemaGenerator to not output enum values and options for flag enums
-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
James Newton-King