The following was posted on the DropDMG blog:
Version 3.5.1 of DropDMG is now available. This is a free update for owners of DropDMG 3.0 that includes the following enhancements:
- DropDMG is now 64-bit only and requires macOS 10.7 or later.
- Updated the Making a Bootable Device Image of a Hard Drive and Restoring Files and Disks sections of the manual for macOS 10.13.
- Worked around a bug in macOS 10.13 that could corrupt auto-generated volume icon files.
- Worked around a macOS error when creating a device image of an APFS volume by instead creating the device image of the entire APFS container.
- Worked around a Finder bug that could mess up the status bar state after creating a disk image.
- Modernized the task code for macOS 10.13.
- Fixed a bug where device image files could be owned by the root user.
- Fixed a bug where DropDMG would unnecessarily regenerate supplied volume icon files.
- Fixed a bug where there was some extraneous text in the man page.
- Updated the Chinese, French, and German localizations.
DropDMG 3.5.1 works with macOS 10.7 through 10.13. Older versions are available for older operating systems. For information about previous releases of DropDMG, please see the version history.