Developing· Apple· Published Jul 8, 2026

macOS 28 to Drop Support for Encrypted Mac OS Extended Volumes

9to5Mac reported that the upcoming macOS 28 update will no longer support Mac OS Extended volumes that use encryption, requiring users to migrate their data.

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DNA Brief

Signal Summary

The outlet noted that Apple is preparing to end support for legacy encrypted HFS+ drives in its next major operating system release.

Why It Matters

Users with older external backups or archived drives may need to reformat to APFS to ensure their files remains accessible on modern hardware.

DNA Read

The report cites a direct policy change from Apple regarding legacy file system support in macOS 28.

Evidence

Start with the primary evidence, then review supporting sources and context.

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Primary Evidence

1
  • 9to5MacDocumentOriginal

    PSA: macOS 28 will drop support for encrypted Mac OS Extended volumes - 9to5Mac

    Marcus Mendes

    Apple has announced that starting with macOS 28, users will need to decrypt or reformat certain storage volumes to keep using them. Here are the details.