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Correct Windows Arm64 minimum hardware requirements - #55453

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tannergooding:update-arm64-hardware-requirements
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Correct Windows Arm64 minimum hardware requirements#55453
tannergooding wants to merge 2 commits into
dotnet:mainfrom
tannergooding:update-arm64-hardware-requirements

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@tannergooding tannergooding commented Aug 15, 2026

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Correct the .NET 11 minimum-hardware documentation after dotnet/runtime#132345 restored the Windows Arm64 JIT and NativeAOT baseline to armv8.0-a.

The Windows Arm64 ReadyToRun target remains armv8.2-a + RCPC. The document now explains that supported devices below that target continue to run by falling back to JIT compilation.

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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot AI lite review requested due to automatic review settings August 15, 2026 16:52
@tannergooding
tannergooding requested review from a team and gewarren as code owners August 15, 2026 16:52
@dotnetrepoman dotnetrepoman Bot added this to the August 2026 milestone Aug 15, 2026

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Pull request overview

This PR updates the .NET 11 breaking-change documentation to reflect that Windows Arm64 JIT/NativeAOT minimum hardware remains armv8.0-a, while the Windows Arm64 ReadyToRun target remains higher and can fall back to JIT on older supported devices.

Changes:

  • Clarifies that the x86/x64 minimum baseline update (to x86-64-v2) is the primary “minimum hardware” breaking change.
  • Updates the Windows Arm64 section to state there’s no minimum-hardware baseline change and explains ReadyToRun fallback-to-JIT behavior.
  • Adjusts the “New behavior,” “Reason for change,” and “Recommended action” sections to distinguish x86/x64 baseline failures from Arm64 ReadyToRun fallback behavior.
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File Description
docs/core/compatibility/jit/11/minimum-hardware-requirements.md Corrects Windows Arm64 minimum-hardware messaging and clarifies ReadyToRun targeting and fallback behavior.

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  • Files reviewed: 1/1 changed files
  • Comments generated: 2
  • Review effort level: Lite

Comment thread docs/core/compatibility/jit/11/minimum-hardware-requirements.md Outdated
Comment thread docs/core/compatibility/jit/11/minimum-hardware-requirements.md Outdated
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
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3 participants