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[3.14] gh-153631: Move to macos-26 runner for iOS (GH-153632)#153674

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hugovk merged 1 commit into
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Jul 14, 2026
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[3.14] gh-153631: Move to macos-26 runner for iOS (GH-153632)#153674
hugovk merged 1 commit into
python:3.14from
freakboy3742:backport-2dc1a91-3.14

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@freakboy3742

@freakboy3742 freakboy3742 commented Jul 13, 2026

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Switches iOS CI to use the macos-26 runner, and makes a small change to the iOS build script to improve build stability. xcodebuild doesn't guarantee that the CoreSimulatorService is running before starting a simulator. If the service isn't running, xcodebuild reports that no simulators are available, and fails to start the test app. However, simctl blocks until the simulator is available, and simctl is used to evaluate the default simulator. So - the iOS build script now unconditionally determines the default simulator, even if a specific simulator is requested.
(cherry picked from commit 2dc1a91)

…53632)

Switches iOS CI to use the macos-26 runner, and makes a small change to the iOS
build script to improve build stability. xcodebuild doesn't guarantee that the
CoreSimulatorService is running before starting a simulator. If the service
isn't running, xcodebuild reports that no simulators are available, and fails to
start the test app. However, simctl blocks until the simulator is available, and
simctl is used to evaluate the default simulator. So - the iOS build script now
unconditionally determines the default simulator, even if a specific simulator
is requested.
(cherry picked from commit 2dc1a91)

Co-authored-by: Russell Keith-Magee <russell@keith-magee.com>
@freakboy3742

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Not sure what is going on with the fuzzing tests - I can't see any reason why this change would affect fuzzing performance.

@hugovk

hugovk commented Jul 14, 2026

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CIFuzz failures on 3.13 and 3.14 is indeed unrelated: #152211

Let's merge, thanks for the PR!

@hugovk hugovk merged commit 71c7c30 into python:3.14 Jul 14, 2026
@freakboy3742 freakboy3742 deleted the backport-2dc1a91-3.14 branch July 14, 2026 07:12
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2 participants