Expo(@expo):BTW the Hermes v1 memory regression is fixed. If you moved to SDK 56 or 57, watched memory climb, and rolled back - the coast is clear now to upgrade. The issue was resolved in expo@57.0.9. React Native 0.86.2 carries the fix. We have a note with more context in this changelog:

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Expo@expo

2026.08.24 20:46

BTW the Hermes v1 memory regression is fixed. If you moved to SDK 56 or 57, watched memory climb, and rolled back - the coast is clear now to upgrade. The issue was resolved in expo@57.0.9. React Native 0.86.2 carries the fix. We have a note with more context in this changelog:

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