# DMG Canvas Release Notes

### Version 4.2.1
November 4, 2025 - Build 402001

Changes

🚨 Critical workaround for an Apple bug in macOS 26.1 which would cause DMG Canvas to crash when opening a document window.

### Version 4.2
October 1, 2025 - Build 402000

Changes

Updates for macOS 26 Liquid Glass appearance.

Fixes an issue where building a dmg, from a document open in DMG Canvas, for a second time may sometimes fail because of a "background image error".

DMG Canvas deletes the .fseventsd and .Spotlight-V100 folders from the disk image before converting it to read-only. These folders are unnecessary to exist, and because of a race condition with macOS may sometimes end up appearing within the default visible area of the window when invisible files are shown in Finder.

### Version 4.1.2
February 21, 2025 - Build 401005

Changes

Fixes an issue with "Build and Pause" not working with APFS disk images because of an ejection error.

Fixes the grid color preference not applying correctly.

When choosing a different file—using the File Info sidebar—for an existing file item inside of the DMG Canvas window, it will now show the new file's size properly.

When setting the dmg to Don't Codesign or Notarize, it will remove any existing identities from the document so they're not still saved in the file (even though building did not use them).

Fixes and issue when building a disk image when the volume name contained some Unicode characters would fail.

Adds additional details to the build log in the case of some errors.

### Version 4.1.1
October 28, 2024 - Build 401001

Fixes

Stops the new warning regarding disallowed aliases from showing up unexpectedly.

### Version 4.1
October 23, 2024 - Build 401000

Changes

Supports building macOS `.pkg` installer packages using the Package Builder companion application.

Added new warnings about aliases to /Library/... folders as macOS generally disallows drag-and-drop onto them now.

Adds "Show in Finder" and "Open" menu items to the contextual menu when right clicking on files in the layout view.

### Version 4.0.9
May 23, 2024 - Build 400033

Changes

Fixes an issue in version 4.0.8 with the in-app updater.

### Version 4.0.8
May 21, 2024 - Build 400032

Changes

Works around an issue caused by a bug in macOS 14.5 which could cause the dmgcanvas command line tool to crash.

The dmgcanvas command line tool can be used to register DMG Canvas.

New application icon.

### Version 4.0.7
November 2, 2023 - Build 400028

Changes

Fixes an issue with overriding notarization settings from the command line.

Updated to address visual problems caused by changes in macOS Sonoma.

Notarization using the dmgcanvas command line tool can use an App Store Connect API key instead of an app-specific password.

Added the 'identities' verb to the dmgcanvas command to list usable code signing identities.

altool support removed entirely now that Apple has discontinued the service.

### Version 4.0.6
June 29, 2023 - Build 400026

Changes

If a particular macOS permissions error occurs when building a disk image, the fix (turning on Full Disk Access) is now suggested.

AppleID setup trims whitespace from the password etc to avoid possible copy & paste errors leading to authentication failures later on.

More error information is shown from some commands during the building process if they fail. (Such as uploading for notarization.)

### Version 4.0.5
May 30, 2023 - Build 400020

Changes

Improved build log formatting for errors during notarization.

### Version 4.0.4
May 24, 2023 - Build 400019

Changes

Fixes the Build & Pause menu item in the toolbar actually doing a Build & Finalize.

Provides a more helpful error message if DMG Canvas encounters a permissions issue when copying files into the disk image. Full Disk Access permissions may be required.

### Version 4.0.3
February 20, 2023 - Build 400018

Changes

Fixes an issue where the build could sometimes appear to be frozen waiting on notarization.

Fixes some rare edge case incompatibilities with v3 documents.

Solves a background text alignment issue (swapping and center- and right-aligned) depending on the computer's CPU architecture. A subtle change on Apple's part caused this. You may need to check your documents now have the correct setting selected, but going forward there will be no issue.

When using an image with greater than 144 DPI, DMG Canvas now scales that down to 144 as is appropriate for interface usage, and so that the 0.5/1/2x settings are still logical.

### Version 4.0.2
January 29, 2023 - Build 400014

Changes

A dmgcanvas document now has better portability between machines when using notarization.

Adds warnings when opening a document where an image file or license agreement RTF file is missing. When building with the command line, warnings are treated as errors.

Addresses a crash caused by a bug in macOS 11.

### Version 4.0.1
January 25, 2023 - Build 400011

Fixes

Contains a few fixes for minor interface issues and stability.

### Version 4.0
January 24, 2023 - Build 400007

New! Xcode Integration

Generate an Xcode Post-Archive build script to automatically build your disk image.

New! All-New Interface

- An all-new interface that is much more modern and usable.
- An all-new Build Log view, showing the most recent build.
- View all DMG file contents in the sidebar.
- All-new Disk Image view with Summary for an overview of options and macOS version compatibility.

New! Design View Improvements

- View all background layout objects (text and images) in the sidebar.
- Files hidden from Finder are hidden in the design view and shown in the sidebar.
- Improved handling of images for Retina-ready design.
- Updated design view metrics for accurate display of appearance in macOS 13.

New! Building

- Uses the new Apple service for notarization. Note that the Notarization process in DMG Canvas 3 is being deprecated by Apple and will cease to work in late 2023.
- An all-new Build Log view, showing the most recent build.
- A more detailed build log with more error information if encountered.
- New options to select dmg compression formats (LZFSE, LZMA, bzip2, etc)
- Defaults to APFS and LZFSE, for modern disk image distribution with fast decompression and mounting.

New! Misc

- Supports building disk images with Shortcuts.
- Uses a new human-readable document format which is better suited to being included in version control systems.