v3.0

🚀 Features, improvements & breaking changes

• [#176] Refactor source generation template, improve performance and update benchmarks - fixed "large project" performance, i.e. many messages
• [#203] Add configuration to make generated types internal (MediatorOptions.GenerateTypesAsInternal) - allows control over visibility of generated types
• [#202] Support for explicit assemblies configuration (where to find messages and handlers, MediatorOptions.Assemblies) - improves control over source generation scope
• [#145] Parallel notifications, correct ordering for switch statement cases - introduction of INotificationPublisher and MediatorOptions.NotificationPublisherType
• [#140] Upgrade to .NET 8, upgrade csharpier, fix tests and remove Roslyn 3.8, 4.0 support - Roslyn 4.1+ supported
• Proper NativeAOT support (see linked issues):
  • [#199] Get rid of open generics registrations for generic notification handlers - cleaner DI registration
  • [#188] Generate DI registrations for pipelines using constructed types when provided in 'MediatorOptions' configuration (MediatorOptions.PipelineBehaviors/MediatorOptions.StreamPipelineBehaviors)
• [#179] Put internal components in '.Internals' namespace in generated source
• [#66] Improved error handling (consistent exceptions) and XML docs
• [#181] Improve code formatting in generated code
• [#180] Cleanup and improve initialization of models used during source generation
• [#113] Add incremental caching - performance improvement for source generation
• [#99] Generate code with NRT enabled - nullable reference types support
• [#86] Remove unnecessary System.Threading.Tasks.Extensions dependency

🐛 Bug Fixes

• [#207] Fix issue where diagnostics were reported with location from different assemblies
• [#206] Fix support for multiple notification handlers on 1 class
• [#147] Fix buggy code for ordering switch statement cases for messages
• [#191] Fix HasManyCommands typo in the template
• [#190] Fix ManyQueries template
• [#52] CancellationToken parameters must come last - parameter ordering fix
• [#131] Use correct accessibility modifier based on message implementing IRequest etc - to support internal messages
• [#219] Remove ServiceDescriptor alias in Mediator.g.cs - alias collision. Potential breaking change for users relying on this alias

📚 Documentation & Samples

• [#201] Add MassTransit sample - new integration example
• [#173] .NET Framework 4.6.2 sample, improve netstandard support
• 3c6326e Add notifications sample
• 466dbd7 Add simple Autofac sample

Contributors:

• @TimothyMakkison
• @feiyun0112
• @alaatm
• @zyofeng
• @hallvar
• @oskogstad
• @SimonCropp

Thank you all!

This is a big release, some changes are not listed above.
See full changelog at release/v2.1...release/v3.0