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

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#189,136 opened on Jul 8, 2026 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 2/5
Estimated time: 1-3 hours
Newbie friendliness: 78/100

Issue type: Feature
Clarity: Clearly specified
Activity status: Quiet
Tech stack: dart, macos
Domain: build-system, desktop

Research direction

Open packages/flutter_tools/lib/src/features.dart around the enable-macos-arm64-only feature flag and inspect how its default and opt-out behavior are defined. Change the default for macOS builds with Xcode 27+ as requested, preserve disabling through the feature flag, and verify the relevant Flutter tool feature tests or build behavior.

Written by the indexing model from the issue text.

Description

P2 team-ios tool triaged-ios

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

https://github.com/flutter/flutter/blob/291b8308063f2f50b0f470761199c185e82d5431/packages/flutter_tools/lib/src/features.dart#L316-L328

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

Dominant language: Dart
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Merged PRs (30d): 413

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