chore: bump fmt to 12.1.0 to fix Xcode 26.4#2996
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Cherry-pick of react@faeef2b - packages/react-native/third-party-podspecs/fmt.podspec - packages/react-native/third-party-podspecs/RCT-Folly.podspec - packages/react-native/gradle/libs.versions.toml - packages/rn-tester/Podfile.lock - scripts/releases/ios-prebuild/configuration.js fmt 11.0.2 uses consteval which is rejected by Xcode 26.4's stricter clang. fmt 12.1.0 fixes this. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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amgleitman
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Jun 25, 2026
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Summary
Cherry-pick of react@faeef2b (react#56099).
fmt 11.0.2 enables
constevalon Apple clang ≥ 14 (which includes Xcode 26.4), but Xcode 26.4's stricter clang rejects consteval expressions in fmt's format-inl.h. fmt 12.1.0 fixes this.Changes:
packages/react-native/third-party-podspecs/fmt.podspec: 11.0.2 → 12.1.0packages/react-native/gradle/libs.versions.toml: 11.0.2 → 12.1.0packages/rn-tester/Podfile.lock: updated fmt version + checksumscripts/releases/ios-prebuild/configuration.js: 11.0.2 → 12.1.0Test Plan
RNTester macOS builds successfully on Xcode 26.4.