Apple to Drop Support for Encrypted Mac OS Extended Drives: What You Need to Know

Apple Will End Support for Encrypted Mac OS Extended Drives in 2025

Apple has announced that it will drop support for encrypted Mac OS Extended (HFS+) drives starting next year. This change affects users who rely on encrypted external drives or disk images formatted with the older file system. If you use encrypted Mac OS Extended drives for backups or storage, you need to plan your migration now.

Why Is Apple Dropping Encrypted Mac OS Extended Support?

Apple is moving fully to the newer Apple File System (APFS). APFS offers better performance, stronger encryption, and improved reliability. The company wants to simplify its software stack by removing support for older, less secure file systems. Encrypted HFS+ drives have been a legacy feature for years, and Apple now considers them outdated.

What Does This Mean for You?

• No new encrypted HFS+ drives: After the update, macOS will not allow you to create new encrypted Mac OS Extended drives.
• Existing drives may become unreadable: Older encrypted drives might not mount or be accessible on newer macOS versions.
• Data loss risk: If you don't migrate your data before the change, you could lose access to important files.

Which macOS Versions Are Affected?

Apple has not specified the exact macOS version, but the change is expected with macOS 15 or macOS 16. Users running macOS Ventura, Sonoma, and older versions should prepare now. The change will affect all Macs that update to the affected macOS release.

How to Migrate Your Encrypted HFS+ Drives to APFS

Step 1: Back Up Your Data

Before making any changes, back up your encrypted HFS+ drive to another location. Use Time Machine or copy files to an unencrypted APFS drive temporarily.

Step 2: Format the Drive as APFS (Encrypted)

Open Disk Utility, select your external drive, and choose "Erase." Set the format to APFS (Encrypted). This will create a new, supported encrypted volume.

Step 3: Copy Your Data Back

After formatting, copy your backed-up files to the new APFS encrypted drive. Verify that all files are accessible.

Tips for a Smooth Transition

• Check your disk images: If you use encrypted .dmg or .sparsebundle files with HFS+, convert them to APFS using Disk Utility.
• Update backup software: Some third-party backup tools may still rely on HFS+. Contact the vendor for APFS-compatible versions.
• Test early: Don't wait until the last minute. Test the migration on a non-critical drive first.

What About Non-Encrypted HFS+ Drives?

Apple is only dropping support for encrypted HFS+ drives. Non-encrypted Mac OS Extended drives will still work for now. However, Apple may eventually phase out HFS+ entirely, so migrating to APFS is a smart long-term move.

Apple's decision to drop encrypted Mac OS Extended drive support is part of its push toward modern file systems. By migrating your encrypted drives to APFS now, you avoid potential data loss and ensure compatibility with future macOS updates. Start planning your transition today to stay ahead of the change.