Releases · MessagePack-CSharp/MessagePack-CSharp

See our migration guide.
Details blog article

What's new

AOT source generation of formatters by default using roslyn source generators. mpc is no longer available. Dynamic formatters still exist (for runtimes that support them), but code that compiles against v3 are unlikely to need them, resulting in better startup performance and improved debugging experience.
AOT source generation is hugely improved.
- Support most or all of the data types that DynamicObjectResolver supported.
- Support for serializing private members.
[MessagePackObject] types can serialize private members without the application having to switch to DynamicObjectResolverAllowPrivate.
Analyzers are on by default, with many new ones to help ensure your code is correct and ready for AOT source generated formatters.
Custom formatters are automatically used for the data types they format when defined in the same assembly, by default. No need to attribute your data types to point to the custom formatter. Opt out by attributing the formatter with [ExcludeFormatterFromSourceGeneratedResolverAttribute].
New CompositeResolverAttribute offers a faster runtime alternative to the CompositeResolver class.

Unity

Consume through NuGetForUnity and UPM instead of through .unitypackage

What's Changed

Fix bug unsafe formatter by @pCYSl5EDgo in #1584
Bump Microsoft.NET.StringTools from 17.4.0 to 17.5.0 by @dependabot in #1588
Add built-in formatters for several more System.Numerics types by @AArnott in #1597
Bump ReactiveProperty from 8.2.0 to 9.1.2 by @dependabot in #1592
Set nullable in unity by @Y-YoL in #1600
Convert mpc and msbuild task package to a roslyn source generator by @AArnott in #1599
Merge master into develop by @AArnott in #1601
Bring back support for the additional allow types by @AArnott in #1602
Report diagnostics instead of throw from TypeCollector by @AArnott in #1605
Enable P2P generic test by @AArnott in #1604
Avoid copying data twice in MessagePackWriter.MemoryCopy when running… by @AlanLiu90 in #1607
Bump Nerdbank.GitVersioning from 3.5.119 to 3.6.128 by @dependabot in #1615
Bump Microsoft.Build.Locator from 1.4.1 to 1.5.5 by @dependabot in #1613
Bump Microsoft.CodeAnalysis.PublicApiAnalyzers from 3.3.3 to 3.3.4 by @dependabot in #1612
Merge master into develop by @AArnott in #1620
Bump NUnit3TestAdapter from 4.3.1 to 4.4.2 by @dependabot in #1614
Bump System.Collections.Immutable from 6.0.0 to 7.0.0 by @dependabot in #1611
Fix the errant package dependency in source generator package by @AArnott in #1622
Fix ILookup<TKey, TElement> deserialized behavior by @AArnott in #1623
Merge latest Library.Template by @AArnott in #1640
Bump Microsoft.NET.StringTools from 17.5.0 to 17.6.3 by @dependabot in #1629
Rollback package dependency versions for analyzers by @AArnott in #1641
move code depending on UnityEditor into separate assembly by @NorbertNemec in #1649
remove MessagePackWindow in Unity by @neuecc in #1651
Union type collect by @Scormave in #1634
Switch from MSBuild properties to an AdditionalFiles json file by @AArnott in #1667
Fix analyzer when only MessagePack.Annotations is referenced by @AArnott in #1674
Allow applying [MessagePackFormatter] on parameters by @AArnott in #1678
Revert "Allow applying [MessagePackFormatter] on parameters" by @AArnott in #1679
Allow applying [MessagePackFormatter] on parameters and return values by @AArnott in #1680
Remove long to int truncation of stream position by @AArnott in #1685
Fix releases links in README text by @KonH in #1688
Better constrain dictionary detection by @AArnott in #1687
Create FUNDING.yml by @AArnott in #1693
Workaround mono runtime bug by @AArnott in #1696
Support to analyze records by @nenoNaninu in #1698
Add MESSAGEPACK_FORCE_AOT preprocessor directive by @brwhelan-msft in #1701
.NET 8 Update(1): stylecop related small update by @pCYSl5EDgo in #1727
.NET 8 Update(0): global.json, Dockerfile, Packages by @pCYSl5EDgo in #1726
.NET 8 Update(2): TargetFrameworks by @pCYSl5EDgo in #1728
.NET 8 Update(3): Microsoft.CodeAnalysis.Analyzers v3.3.4 by @pCYSl5EDgo in #1729
Bump Newtonsoft.Json from 13.0.2 to 13.0.3 by @dependabot in #1656
.NET 8 Update(4): System.Collections.Frozen by @pCYSl5EDgo in #1730
.NET 8 Update(5): System.Collections.Generic.PriorityQueue<TElement, TPriority> by @pCYSl5EDgo in #1731
.NET 8 Update(6): CollectionsMarshal for ListFormatter by @pCYSl5EDgo in #1732
Merge latest Library.Template by @AArnott in #1737
Source Generator configuration via attributes instead of .json file by @AArnott in #1736
Merge master to develop by @AArnott in #1741
Bump Microsoft.CodeAnalysis.Analyzers from 3.3.3 to 3.3.4 by @dependabot in #1633
Bump Microsoft.CodeAnalysis to 4.8.0 for tests by @AArnott in #1742
Bump NUnit3TestAdapter from 4.4.2 to 4.5.0 by @dependabot in #1654
Improved UnityShims for better code sharing by @Scormave in #1585
Drop support for roslyn 3.8 by @AArnott in #1749
IEnumerable serialize improvement: Enumerable.TryGetNonEnumeratedCount by @pCYSl5EDgo in #1751
AOT by default by @AArnott in #1743
Add a [CompositeResolver] attribute that triggers source generation by @AArnott in #1754
Merge Library.Template update by @AArnott in #1763
Bump MicrosoftCodeAnalysisTestingVersion from 1.1.2-beta1.23509.1 to 1.1.2-beta1.24074.2 by @dependabot in #1765
Bump System.Memory from 4.5.4 to 4.5.5 by @dependabot in #1764
.NET 8 Update(8): Update Benchmarks not using Dynamic PGO and BinaryFormatter by @pCYSl5EDgo in #1746
Bump ReactiveProperty from 9.3.4 to 9.5.0 by @dependabot in #1779
fixing issue with backing field naming and serialization failing by @epitka in #1785
Bump Microsoft.NET.StringTools from 17.8.3 to 17.9.5 by @dependabot in #1782
B...