5.0.2

• Remove - Removed WP8 library
• Fix - Fixed required System.Numerics.dll reference by removing BigInteger from external API calls

5.0.1

• 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

4.5.11

• New feature - Added ITraceWriter, MemoryTraceWriter, DiagnosticsTraceWriter
• New feature - Added StringEscapeHandling with options to escape HTML and non-ASCII characters
• New feature - Added non-generic JToken.ToObject methods
• New feature - Deserialize ISet properties as HashSet
• New feature - Added implicit conversions for Uri, TimeSpan, Guid
• New feature - Missing byte, char, Guid, TimeSpan and Uri explicit conversion operators added to JToken
• New feature - Special case so Version type is correctly deserialized
• Change - Silverlight and Windows Phone assemblies in NuGet are strong named again
• Change - Improved CamelCasePropertyNamesContractResolver camel casing property names
• Change – Explicit JValue conversions are more flexible when converting values
• Fix - Fixed QuoteChar not being used when writing DateTimes, TimeSpans, Uris and Guids
• Fix - Fixed JValue constructors for Uri, TimeSpan, Guid assigning incorrect JTokenType
• Fix - Fixed ReferenceLoopHandling not being used when serializing ISerializable and dynamic values
• Fix - Fixed potential null reference error when getting attributes
• Fix - Fixed .NET 2.0 build incorrectly referencing DateTimeOffset

4.5.10

• New feature - Added Portable build to NuGet package
• New feature - Added GetValue and TryGetValue with StringComparison to JObject
• Change - Improved duplicate object reference id error message
• Fix - Fixed error when comparing empty JObjects
• Fix - Fixed SecAnnotate warnings
• Fix - Fixed error when comparing DateTime JValue with a DateTimeOffset JValue
• Fix - Fixed serializer sometimes not using DateParseHandling setting
• Fix - Fixed error in JsonWriter.WriteToken when writing a DateTimeOffset
• Fix - Fixed error when serializing emitted classes that have null constructor parameter names
• Fix - Fixed empty strings not correctly deserializing as null onto nullable properties

4.5.9

• New feature - Added JsonValueConverter
• New feature - Set a property's DefaultValueHandling to Ignore when EmitDefaultValue from DataMemberAttribute is false
• Fix - Fixed DefaultValueHandling.Ignore not igoring default values of non-nullable properties
• Fix - Fixed DefaultValueHandling.Populate error with non-nullable properties
• Fix - Fixed error when writing JSON for a JProperty with no value
• Fix - Fixed error when calling ToList on empty JObjects and JArrays
• Fix - Fixed losing decimal precision when writing decimal JValues

4.5.8

• New feature - Serialize and deserialize multidimensional arrays
• New feature - Members on dynamic objects with JsonProperty/DataMember will now be included in serialized JSON
• New feature - LINQ to JSON load methods will read past preceding comments when loading JSON
• New feature - Improved error handling to return incomplete values upon reaching the end of JSON content
• Change - Improved performance and memory usage when serializing Unicode characters
• Change - The serializer now creates objects using GetUninitializedObject when deserializing a Serializable type
• Fix - Added SecurityTransparent attribute to WinRT build
• Fix - Fixed infinite loop error caused by error handling upon reaching the end of JSON content

4.5.7

• Fix - Fixed Metro build to pass Windows Application Certification Kit on Windows 8 Release Preview
• Fix - Fixed Metro build error caused by an anonymous type
• Fix - Fixed ItemConverter not being used when serializing dictionaries
• Fix - Fixed an incorrect object being passed to the Error event when serializing dictionaries
• Fix - Fixed decimal properties not being correctly ignored with DefaultValueHandling

4.5.6

• New feature - Added IgnoreDataMemberAttribute support
• New feature - Added GetResolvedPropertyName to DefaultContractResolver
• New feature - Added CheckAdditionalContent to JsonSerializer
• Change - Metro build now always uses late bound reflection
• Change - JsonTextReader no longer returns no content after consecutive underlying content read failures
• Fix - Fixed bad JSON in an array with error handling creating an infinite loop
• Fix - Fixed deserializing objects with a non-default constructor and reference tracking enabled
• Fix - Fixed deserializing relative Uris
• Fix - Fixed constructor name result not being type checked

4.5.5

• New feature - Added ItemIsReference, ItemReferenceLoopHandling, ItemTypeNameHandling, ItemConverterType to JsonPropertyAttribute
• New feature - Added ItemRequired to JsonObjectAttribute
• New feature - Added Path to JsonWriterException
• Change - Improved deserializer call stack memory usage
• Change - Moved the PDB files out of the NuGet package into a symbols package
• Fix - Fixed infinite loop from an input error when reading an array and error handling is enabled
• Fix - Fixed base object error not being handled when deserializing

4.5.4

• New feature - Added Portable Class Library build
• New feature - Added support for customizing the JsonConverter, type name handling and reference handling of collection items
• New feature - Added Path to JsonReaderException/JsonSerializationException messages
• New feature - Added DateParseHandling to JsonReader
• New feature - Added JsonContainerContract
• New feature - Added JsonDictionaryAttribute
• Change - Instances of Exception have been changed to be a more specific exception
• Fix - Fixed Windows 8 Application Certification tool error by removing AllowPartiallyTrustedCallersAttribute from assembly
• Fix - Fixed JsonWriters not using DateTimeZoneHandling