Metalama 2025.0.1-preview released

[prochan2]

We have released Metalama 2025.0.1-preview, based on 2024.2.26.

New

• Support for .NET 9 RC 1 SDK and Roslyn 4.12. (Support for C# 13 features is WIP.)
• Support for Visual Studio 2022 17.12 Preview 2.
• Metalama.Compiler: support for interceptors and transformers side by side.

Improved

• When a field is overridden, IRef<IField>.ToRef() will return a shim of type IField. This field is not reachable in the code model, i.e. it is not exposed on INamedTypes.Fields. On this shim, the IField.OverridingProperty returns the property that the field has become in the code model. Conversely, IProperty.OriginalField returns the shim IField.

Breaking Changes

• The minimal supported Visual Studio version is 2022 17.6 LTSC.
• The minimal supported Roslyn version is 4.4.0.
• The ReferenceResolutionOptions enum and all parameters of ReferenceResolutionOptions in IRef.GetTarget have been removed.

Fixed

• Introduced types are not visible in compilation.Types collection.
• Error LAMA0503 when attempting to introduce a new method with an identical signature existing in base type but different return type.
• Make ResourceExtractor more robust when some files from its directory are deleted.
• Intermittent failure of tests using JSON RPC.
• DesignTimeExceptionHandler testability.

[prochan2]

Visual Studio Tools for Metalama and PostSharp are available here.