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This changelog provides a detailed history of updates and improvements to Cadmium.

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1.5.0

January 17, 2026
  • New feature: AI gap closer more intelligently closes gaps in artwork
  • Bug fixes
  • Updated software packages for improved stability

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1.4.1

September 9, 2025
  • Fixed issues with editing the color palette, changing and removing colors
  • Added a welcome modal with sample file

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1.4.0

September 1, 2025
  • MP4 export now works on Windows
  • Enhanced Line Layer colorization is much faster, responsive to color tolerance slider, and no longer beta
  • Addressed bugs and issues with timeline selection and deletion
  • Single click on swatch now loads color
  • Added variable framerate playback and MP4 export
  • Added ability to add in/out points to playback

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1.3.2

August 27, 2025
  • Fixed issues related to drawing on hidden layers
  • Fixed MP4 export for Windows
  • Improved wait screen information
  • Improved enhanced line colorization

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1.3.0

August 14, 2025 Cadmium is out of beta!

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1.2.0

August 14, 2025
  • Fixes related to behavior when closing laptop lid or losing internet connection
  • Improved cancellation logic
  • Increased free tier max resolution to 4K

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1.1.0

August 8, 2025
  • Upgraded to faster, more powerful GPU servers
  • New GPU-powered model — more accurate with complex characters and motion
  • EL line fixes — automatic line colorization now works reliably
  • Built-in licensing — supports credits, free tiers, and unlimited Pro plans

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1.0.0

July 1, 2025 Initial public release of Cadmium.

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Pre-Release Versions

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0.3.4

February 19, 2025
  • Speed boost: now 2x faster to analyze images
  • Various bug fixes

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0.3.3

November 29, 2024
  • Added reference frame toggle button
  • Fixed server bug that was occasionally preventing users from colorizing
  • Improvements to the Enhanced Line feature
  • Automatic line analysis threshold improves performance without adjusting settings

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0.3.2

August 24, 2024
  • Colorize speed boost — 4K images are now easier to process
  • Improved error handling
  • Added user ID lookup for better tech support

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0.3.1

May 2, 2024
  • Stop button actually works now
  • Cadmium is now completely cloud-based and works on any machine with internet access
  • Improved analysis settings — better gap closing, adjustable alpha sensitivity
  • Improved error handling and bug fixes

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0.3.0

March 15, 2024
This release is not backwards compatible with files saved from earlier versions. Please complete any work in progress and export before upgrading.
  • Lightning fast cloud colorization
  • Line coloring engine (experimental)
  • Works for any version of macOS on Intel or M1
  • Native Apple M1 acceleration support
  • Adjustable segmentation size threshold

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0.2.15

October 19, 2023
  • Added reference panel for easier color picking
  • Updated the updater for smoother, more transparent process
  • Fixed issue preventing saving/opening older or cross-machine projects
  • Updated Japanese translation

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0.2.14

September 21, 2023
  • Improved temp file storage and removal
  • Updated export functionality
  • Japanese language support

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0.2.13

September 2, 2023
  • Fixed an error that was causing files to not load properly, leading to issues with colorizing

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0.2.12

July 28, 2023
  • Fixed SVG export bug
  • Fixed bugs to allow import of color images without line images
  • Completely rewrote the Cadmium AI engine to operate more efficiently and accurately

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0.2.11

July 29, 2023
  • Added eraser tool
  • Fixed drawing bugs — pen now operates more smoothly and reliably, frames don’t get deleted
  • Fixed playback issue where frames misalign
  • Improved update flow
  • Added recently opened files to menu

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0.2.10

July 8, 2023
  • Color frames are now analyzed on import
  • Import color sequences without a line sequence and export with colors separated
  • Speed increase on colorizing frames
  • Fixed color palette bugs
  • Timeline frame behavior updates

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0.2.9

June 22, 2023
  • Speed boost on frame analysis — up to 6x faster
  • New welcome tour for easier onboarding
  • Bug fixes and improvements to color palette processing

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0.2.8

May 8, 2023
  • Patched a critical bug that would sometimes reset Cadmium when typing in a text field

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0.2.7

April 14, 2023
  • Added global color palette — change individual colors throughout the sequence with one click
  • Tool menus can be dragged and dropped to either side of the window
  • Color palette swatches can be reordered
  • Export colors separated

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0.2.6

March 20, 2023
  • Added ability to save and open Cadmium files
  • Added Cmd + right-click drag shortcut to change brush size
  • Added ability to hide/show timeline (T)
  • Added secondary saved color with toggle (X)

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0.2.5

March 9, 2023
  • Canvas view can now be reset from View menu
  • Current background color now shown in color picker
  • Fixed bug with rapid zoom in/out
  • Fixed auto-updater bug
  • Undo/redo with 5 states

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0.2.4

March 6, 2023
  • Undo/redo support (up to 5 states)
  • Fill tool now synchronized with Cadmium AI Core
  • Pen tool improvements
  • Settings saved and restored after quit
  • Various UI updates

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0.2.3

February 28, 2023
  • Improved and updated tool shortcuts
  • Active layer functionality — ability to draw on either layer
  • MP4 video export
  • Improved SVG export — more accurate and faster
  • Added UI for auto-updater

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0.2.2

February 21, 2023
  • Added color palette feature — colors added when fill or pen tool is used with a new color, and when sequences are colorized
  • Added SVG vector export at three quality levels

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0.2.1

February 12, 2023
  • Fixed an issue where Cadmium could not analyze or colorize on macOS due to Apple system integrity protection

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0.2.0

February 4, 2023 First beta release of Cadmium.