• New feature - Added .NET 4.5 library
• New feature - Added portable library targeting .NET 4.5, Win8, WP8
• New feature - Added Path to JToken
• New feature - Added BigInteger support
• New feature - Added IReadOnlyCollection and IReadOnlyDictionary<TKey, TValue> support
• New feature - Added FloatFormatHandling to JsonWriter/JsonSerializer/JsonSerializerSettings
• New feature - Added DateFormatString to JsonWriter/JsonSerializer/JsonSerializerSettings
• New feature - Added support for multiple serialization events and use base type serialization events
• New feature - Added DeserializeAnonymousType overload with JsonSerializerSettings
• New feature - Added support for specifying root type when serializing JSON with TypeNameHandling.Auto
• New feature - Added support for creating lists and dictionaries with an IEnumerable constructor
• New feature - Added IConvertible support to JValue
• New feature - Added support for serializing custom IConvertible values
• New feature - Added support for deserializing IList
• New feature - Added support for converting byte array JValues to Guid
• New feature - Added support for deserializing byte arrays to Guid
• Change - NaN and Infinity floating point values are serialized as strings by default
• Change - Minor breaking changes to JsonSchema type
• Change - Upgraded Windows Phone assembly to WP8
• Change - DateTime IDictionary keys are now serialized in ISO date format
• Change - DataContractAttribute is no longer inherited to match DataConctractSerializer behavior
• Change - StringEnumConverter converts empty strings to null for nullable enums
• Change - Guids serialize to a binary UUID in BSON instead of a string
• Remove - Removed SL4 library
• Fix - Fixed JTokenWriter returning a null reference
• Fix - Fixed static fields to no longer be included with fields serialization
• Fix - Fixed recursively reading type wrapper objects when deserializing
• Fix - Fixed incorrect namespace when converting XML to JSON
• Fix - Fixed poor performance when serializing/deserialize dynamic objects
• Fix - Fixed StringEnumConverter to throw JsonSerializerException on error
• Fix - Fixed hidden properties not being serialized