Update Changelog.md

Author: Nice3point

Changelog.md

@@ -1,6 +1,58 @@
 # 2027.0.0-preview.2.20260203
 
-- Revit 2027 support
+This release adds support for Revit 2027, benchmarking for different languages and custom Revit installation path.
+
+## Localization support
+
+BenchmarkDotNet initializes Revit with the `English - United States` language. To override these defaults, use assembly-level attributes:
+
+- Add the attributes to any .cs file in your project (e.g., Program.cs):
+
+    ```csharp
+    using Nice3point.Revit.Injector.Attributes;
+    
+    [assembly: RevitLanguage("ENU")]
+    ```
+
+- Add the attributes directly to your .csproj file:
+
+    ```xml
+    <!-- Revit Environment Configuration -->
+    <ItemGroup>
+        <AssemblyAttribute Include="Nice3point.Revit.Injector.Attributes.RevitLanguageAttribute">
+            <_Parameter1>ENU</_Parameter1>
+        </AssemblyAttribute>
+    </ItemGroup>
+    ```
+
+The `RevitLanguage` attribute accepts a [language](https://help.autodesk.com/view/RVT/2026/ENU/?guid=GUID-BD09C1B4-5520-475D-BE7E-773642EEBD6C) name (e.g., "English - United States"), code (e.g., "ENU")
+or [LanguageType](https://www.revitapidocs.com/2026/dfda33cf-cbff-9fde-6672-38402e87510f.htm) enum value (e.g., "English_GB" or "15").
+
+## Custom Revit installation path
+
+TUnit initializes Revit from `C:\Program Files\Autodesk\Revit {version}` installation path. To override these defaults, use assembly-level attributes:
+
+- Add the attributes to any .cs file in your project (e.g., TestsConfiguration.cs):
+
+    ```csharp
+    using Nice3point.Revit.Injector.Attributes;
+    
+    [assembly: RevitInstallationPath("D:\Autodesk\Revit Preview")]
+    ```
+
+- Add the attributes directly to your .csproj file:
+
+    ```xml
+    <!-- Revit Environment Configuration -->
+    <ItemGroup>
+        <AssemblyAttribute Include="Nice3point.Revit.Injector.Attributes.RevitInstallationPathAttribute">
+            <_Parameter1>D:\Autodesk\Revit $(RevitVersion)</_Parameter1>
+        </AssemblyAttribute>
+    </ItemGroup>
+    ```
+
+## Breaking changes
+
 - Global hooks `OnSetup`/`OnCleanup` renamed to `OnGlobalSetup`/`OnGlobalCleanup`
 
 # 2026.0.0