Update Microsoft.Diagnostics.Runtime to 4.0.722401

[max-charlamb]

Update ClrMD to the first stable release with cross-bitness address truncation fixes (microsoft/clrmd#1423).

Changes

• eng/Versions.props: Update MicrosoftDiagnosticsRuntimeVersion from 4.0.0-beta.26210.1 to 4.0.722401 (stable release)
• DumpTestBase.cs: Remove the cross-bitness dump test skip added in Skip cross-bitness cDAC dump tests until ClrMD supports it #127118 — ClrMD 4.0.722401 now correctly handles sign-extended CLRDATA_ADDRESS values, enabling 32-bit hosts to read 64-bit dumps

What was fixed in ClrMD

ClrMD 4.0.722401 includes:

• ClrDataAddress type with explicit sign-extension handling (FromTargetAddress / ToAddress)
• ABI-safe COM vtable marshalling (addresses as ulong primitives, not structs)
• unchecked casts to prevent OverflowException on sign-extended 32-bit addresses
• Full verification against sospriv.idl in dotnet/runtime

Cross-platform verification

xplat cDAC dump tests pass with the skip removed:
https://dev.azure.com/dnceng-public/public/_build/results?buildId=1398682&view=ms.vss-test-web.build-test-results-tab

[Copilot]

Pull request overview

Updates the repo’s pinned ClrMD dependency version to pick up the newer Microsoft.Diagnostics.Runtime beta that includes cross-bitness dump reading support (upstream changes replace host IntPtr.Size assumptions with target PointerSize).

Changes:

• Bump MicrosoftDiagnosticsRuntimeVersion from 4.0.0-beta.26210.1 to 4.0.0-beta.26217.1.

[Copilot]

Pull request overview

Updates the repo’s pinned ClrMD (Microsoft.Diagnostics.Runtime) package version so runtime tooling/tests that depend on it can pick up upstream fixes (notably cross-bitness dump reading via target PointerSize).

Changes:

• Bump MicrosoftDiagnosticsRuntimeVersion from 4.0.0-beta.26210.1 to 4.0.0-beta.26217.1.

[github-actions]

🤖 Copilot Code Review — PR #127088

Note

This review was AI-generated by Copilot.

Holistic Assessment

Motivation: Justified. The PR bumps Microsoft.Diagnostics.Runtime (ClrMD) to pick up cross-bitness dump reading support (microsoft/clrmd#1421), which replaces ~50 uses of IntPtr.Size (host pointer size) with the target process's PointerSize so dumps from different architectures can be read correctly (e.g., ARM64 dumps from an x64 host).

Approach: Correct. A single version property change in eng/Versions.props is the standard mechanism for bumping package versions in dotnet/runtime.

Summary: ✅ LGTM. This is a minimal, low-risk version bump (4.0.0-beta.26210.1 → 4.0.0-beta.26217.1) of a test-only dependency consumed solely by Microsoft.Diagnostics.DataContractReader.DumpTests.csproj. No production code is affected, no public API surface changes, and no behavioral changes to the runtime itself.

---

Detailed Findings

✅ Scope & Risk — Minimal change, test-only impact

The change modifies exactly one line in eng/Versions.props. The MicrosoftDiagnosticsRuntimeVersion property is consumed only by the cDAC DumpTests project (src/native/managed/cdac/tests/DumpTests/Microsoft.Diagnostics.DataContractReader.DumpTests.csproj, line 42). No production libraries or runtime components reference this package, so the blast radius is limited to test infrastructure.

✅ Motivation verified — Cross-bitness support is real

The referenced clrmd PR (#1421) makes substantive changes across 14 files to replace host-sized pointer reads with target-sized reads, including a bug fix in CommonMemoryReader.ReadPointer (was resolving to the wrong AsPointer overload, treating pointer size as offset). This is a meaningful improvement for the cDAC dump test infrastructure which needs to read dumps from various architectures.

✅ No public API surface changes

No ref/ assembly changes, no new public members, no production source changes. API approval verification is not applicable.

✅ Version convention consistency

The version follows the existing pre-release naming convention (4.0.0-beta.NNNNN.N) consistent with the previous value. No concerns about version format or feed compatibility.

Generated by Code Review for issue #127088 · ◷