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When building a macOS app with Xcode 27+, default to build ARM-only #189136

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When building a macOS app with Xcode 27+, default to build ARM-only#189136
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P2Important issues not at the top of the work listteam-iosOwned by iOS platform teamtoolAffects the "flutter" command-line tool. See also t: labels.triaged-iosTriaged by iOS platform team

Description

@vashworth
vashworth
opened on Jul 8, 2026

The enable-macos-arm64-only feature flag should default to true in a future version of Flutter.

flutter/packages/flutter_tools/lib/src/features.dart

Lines 316 to 328 in 291b830

/// Whether to only build for arm64 when targeting macOS.
const macOSArm64Only = Feature(
name: 'building arm64 architecture only for non-debug macOS builds',
extraHelpText:
'If enabled, macOS release and profile builds generate Apple Silicon binaries instead of universal binaries. '
'This feature is disabled by default, but will default to enabled in a future release, before Intel Mac support is eventually discontinued. '
'See https://flutter.dev/go/macos-intel-deprecation for details.',
configSetting: 'enable-macos-arm64-only',
environmentOverride: 'FLUTTER_MACOS_ARM64_ONLY',
master: FeatureChannelSetting(available: true),
beta: FeatureChannelSetting(available: true),
stable: FeatureChannelSetting(available: true),
);

We will still allow opting out by disabling the feature flag.

Activity

  1. vashworth
    added
    toolAffects the "flutter" command-line tool. See also t: labels.
    P2Important issues not at the top of the work list
    team-iosOwned by iOS platform team
    triaged-iosTriaged by iOS platform team
    on Jul 8, 2026
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    P2Important issues not at the top of the work listteam-iosOwned by iOS platform teamtoolAffects the "flutter" command-line tool. See also t: labels.triaged-iosTriaged by iOS platform team

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