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Bump iOS simulator arm64 Helix queue to OSX.26 and centralize iOS-family queues#128448

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Bump iOS simulator arm64 Helix queue to OSX.26 and centralize iOS-family queues#128448
matouskozak wants to merge 6 commits into
dotnet:mainfrom
matouskozak:matouskozak/ios-sim-arm64-osx26-helix

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@matouskozak matouskozak commented May 21, 2026

Note

Content authored with assistance from GitHub Copilot.

Moves the iOS / tvOS simulator, Mac Catalyst, and iOS / tvOS device Helix queue references onto centralized variables in eng/pipelines/helix-platforms.yml, and bumps the iOS-family arm64 simulator queue from OSX.15.Arm64 to OSX.26.Arm64 (Tahoe) at the same time.

Functional change

Platform Public queue before Public queue after Internal queue before Internal queue after
iossimulator_arm64 / tvossimulator_arm64 / maccatalyst_arm64 OSX.15.Arm64.Open OSX.26.Arm64.Open OSX.15.Arm64 OSX.26.Arm64
iossimulator_x64 / tvossimulator_x64 / maccatalyst_x64 OSX.15.Amd64.Open OSX.15.Amd64.Open OSX.15.Amd64 OSX.15.Amd64
ios_arm64 device osx.15.amd64.iphone.open OSX.15.Amd64.Iphone.Open osx.15.amd64.iphone OSX.15.Amd64.Iphone
tvos_arm64 device osx.15.amd64.appletv.open OSX.15.Amd64.AppleTV.Open osx.15.amd64.appletv OSX.15.Amd64.AppleTV

Only the arm64 simulator row is a behavioral change. Everything else is a same-queue replacement (Helix queue names are case-insensitive, so the case-only changes are no-ops).

OSX.26.Arm64(.Open) is already declared in helix-platforms.yml as the macOS-arm64 latest queue and is in use elsewhere, so no dnceng coordination is required.

Centralization cleanup

eng/pipelines/helix-platforms.yml was added in #120817 specifically to centralize Helix queue names, but the iOS-family entries were never wired up at the call sites and the values there had drifted/were buggy. This PR finishes that work:

  • Defined a public/internal pair of variables for each iOS-family queue:
    • helix_macos_ios_simulator_arm64 / _internal
    • helix_macos_ios_simulator_x64 / _internal
    • helix_macos_ios_device / _internal
    • helix_macos_tvos_device / _internal
  • Switched eng/pipelines/libraries/helix-queues-setup.yml and eng/pipelines/coreclr/templates/helix-queues-setup.yml to consume them, so future bumps only touch helix-platforms.yml.
  • Dropped the unused _latest / _oldest variants — the iOS family only has a single queue per (platform, project) combination, so no slot picker is needed. The pre-existing _latest arm64-simulator entry was also pointing at an Amd64 queue, so it was buggy as well as unused.
  • Corrected the helix_macos_arm64_latest comment that described macOS 26 as "Sequoia 15"; macOS 26 is Tahoe.

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Pull request overview

This PR updates Helix queue selection for the iOS/tvOS simulator, Mac Catalyst, and iOS/tvOS device platforms by centralizing their queue names into eng/pipelines/helix-platforms.yml and switching the queue-setup templates to consume those variables. It also bumps the arm64 iOS-family simulator host queue from OSX.15.Arm64(.Open) to OSX.26.Arm64(.Open).

Changes:

  • Centralized iOS-family Helix queue names into new helix_macos_ios_* variables in eng/pipelines/helix-platforms.yml (including public/internal variants).
  • Updated CoreCLR and Libraries helix queue setup templates to reference the centralized variables instead of inline queue strings.
  • Updated macOS-arm64 “latest” comment to reflect macOS 26 (Tahoe).

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File Description
eng/pipelines/libraries/helix-queues-setup.yml Replaces inline iOS-family queue strings with centralized helix_macos_ios_* variables.
eng/pipelines/helix-platforms.yml Adds iOS-family queue variables (public/internal), removes unused iOS-family latest/oldest variants, and updates macOS 26 labeling.
eng/pipelines/coreclr/templates/helix-queues-setup.yml Switches iOS-family queue selection to centralized variables (with public/internal branching).

Comment thread eng/pipelines/libraries/helix-queues-setup.yml
@matouskozak
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/azp run runtime-maccatalyst

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Azure Pipelines successfully started running 1 pipeline(s).

@matouskozak
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/azp run runtime-extra-platforms

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Azure Pipelines successfully started running 1 pipeline(s).

This was referenced May 25, 2026
Copilot AI review requested due to automatic review settings May 26, 2026 13:40
@matouskozak
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/azp run runtime-extra-platforms

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Azure Pipelines successfully started running 1 pipeline(s).

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Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated no new comments.

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/azp run runtime-extra-platforms

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Azure Pipelines successfully started running 1 pipeline(s).

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Tagging subscribers to 'os-maccatalyst': @vitek-karas, @kotlarmilos, @steveisok, @akoeplinger
See info in area-owners.md if you want to be subscribed.

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Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated no new comments.

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