[Do not merge] Test PR

.gdn/OneBranch.gdnsuppress

@@ -4,138 +4,112 @@
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.github/ISSUE_TEMPLATE/bug-report.yaml

@@ -36,9 +36,9 @@ body:
       label: NuGet package version
       description: Specify the version of Windows App SDK (or Project Reunion) you're using.
       options:
-        - "Windows App SDK 1.7.3: 1.7.250606001"
-        - "Windows App SDK 1.7 Preview 1: 1.7.250208002-preview1"
-        - "Windows App SDK 1.8 Experimental 4: 1.8.250702007-experimental4"
+        - "Windows App SDK 1.8.5: 1.8.260209005"
+        - "Windows App SDK 1.8 Preview 1: 1.8.250814004-preview1"
+        - "Windows App SDK 2.0 Experimental 4: 2.0.0-experimental4"
   - type: dropdown
     attributes:
       label: Packaging type

.github/copilot-instructions.md

@@ -0,0 +1,41 @@
+---
+description: 'Windows App SDK AI contributor guidance'
+---
+
+# Windows App SDK – Copilot Instructions
+
+Concise guidance for AI contributions to the Windows App SDK. For complete details, see [AGENTS.md](../AGENTS.md).
+
+## Quick Reference
+
+- **Build**: `BuildAll.ps1` / `BuildAll.cmd` (builds the full SDK solution)
+- **Run**: Test on x64, x86, ARM64 in Debug and Release
+- **Verify**: Run `TestAll.ps1` / `TestAll.cmd`
+- **Exit code 0 = success** – do not proceed if build fails
+
+## Key Rules
+
+- Code should be **production-quality** – follow SDK coding standards
+- Follow **modular design** – clear component boundaries
+- Support all platforms: x64, x86, ARM64 (Debug and Release)
+- Minimum OS: Windows 10 version 1809 (build 17763)
+- Include copyright headers; build clean with no warnings
+
+## Style Enforcement
+
+- **C#**: Follow `.editorconfig` at repo root
+- **C++**: Use C++/WinRT; follow `docs/Coding-Guidelines.md`
+
+## When to Ask for Clarification
+
+- Ambiguous sample requirements after reviewing docs
+- Cross-feature impact unclear
+- API usage patterns not well documented
+
+## Detailed Documentation
+
+- [AGENTS.md](../AGENTS.md) – Full AI contributor guide
+- [Coding Guidelines](../docs/Coding-Guidelines.md) – Complete coding standards
+- [Contributor Guide](../docs/contributor-guide.md) – Contribution requirements
+- [PR Template](../docs/pull_request_template.md) – Pull request checklist
+- [Windows App SDK Docs](https://docs.microsoft.com/windows/apps/windows-app-sdk/) – Official documentation