paint.net 5.0.12

This is a hotfix for a crash in the box filter rendering kernel, which is used to generate mip-maps for the canvas when zoomed out.

NOTE for Windows 7, Windows 8.1, and 32-bit/x86 users: Paint.NET v4.3.x will be the last release(s) that work on Windows 7, Windows 8.1, or on any 32-bit/x86 version of Windows. It has become significantly more difficult and time consuming to support these lately, not very many people are using them, and I can no longer justify the cost and frustration of keeping support for these afloat. Starting with Paint.NET v4.4, only Windows 10 and 11+ will be supported, and only on 64-bit (x64 and ARM64). I have started working on v4.4 and will only release v4.3.x updates on an as-needed basis and only until v4.4 is completed.

Changes since v4.3.5:

• Fixed a stack overflow in the box filter rendering kernel that could cause hangs or crashes when the zoom level was around 1/8th (12.5%) or 1/32nd (3.125%) for particular image sizes e.g. ((N x 2048) + 16)). Reported here: https://forums.getpaint.net/topic/119180-new-update-is-broken-for-me-435/

This update includes several important bug fixes, and greatly improves performance.

NOTE for Windows 7, Windows 8.1, and 32-bit/x86 users: Paint.NET v4.3.x will be the last release(s) that work on Windows 7, Windows 8.1, or on any 32-bit/x86 version of Windows. It has become significantly more difficult and time consuming to support these lately, not very many people are using them, and I can no longer justify the cost and frustration of keeping support for these afloat. Starting with Paint.NET v4.4, only Windows 10 and 11+ will be supported, and only on 64-bit (x64 and ARM64). I have started working on v4.4 and will only release v4.3.x updates on an as-needed basis and only until v4.4 is completed.

Changes since v4.3.4:

• Improved rendering performance for most tools, which are now up to 100% faster (see discussion here:
  https://twitter.com/x/status/1477344632404996101
  )
• Fixed an issue with the Save Configuration dialog where the OK and Cancel buttons were overlapping on Windows 7 (thanks @toe_head2001 for the fix!)
• Fixed an issue when saving an image with 257 unique colors at 8-bit color depth when the 257th unique color was the last (bottom-right) pixel. https://forums.getpaint.net/topic/1...ms-related-to-bit-depth-being-at-auto-detect/
• Fixed an issue where the Layers window buttons were not correctly enabling/disabling after an undo/redo operation. https://forums.getpaint.net/topic/1...to-undo-delete-layer-button-is-still-enabled/
• Fixed an issue that was preventing the VTF Plugin from saving multi-layer images correctly, as reported at https://www.reddit.com/r/paintdotnet/comments/rnx11j/help_with_vtf_editing_blend_saving/
• Fixed an issue when saving images at 1-bit or 2-bit color depth, where sometimes not all colors would be included. https://forums.getpaint.net/topic/1...-pixel-with-a-value-of-010101-down-to-000000/
• Fixed an issue with some IndirectUI plugins that were using customized colors for their sliders
• Fixed a compatibility issue with TR’s Morpher plugin https://forums.getpaint.net/topic/1...arch-14th-2016/?do=findComment&comment=589420
• Fixed a compatibility issue with some of @Ego Eram Reputo‘s older plugins that were unable to launch help links due to a change in .NET 6

Changes since v4.3.3:

• Fixed compatibility with the Spaced Text plugin, which was crashing
• Fixed a bug with the Color Picker tool, which was sampling from a recently hidden layer when using Image sampling mode
• Fixed the ability to click URLs in some older plugins (CustomBrushesMini, Shape Maker, Vandermotten Effects, and those based on OptionBasedLibrary)
• Fixed the incorrect registration of the app in the HKCR\Applications registry key, which was affecting some methods for launching the app
• Fixed many translations which had updates but that had inadvertently not been incorporated into the app itself
• Fixed the PROGRAMSGROUP property in the MSI (it was being ignored), which affects custom deployments
• Fixed the CHECKFORUPDATES property which was missing from the MSI. It still worked, but you had to add it yourself. This only affected MSI-based deployment.

NOTE for Windows 7, Windows 8.1, and 32-bit/x86 users: Paint.NET v4.3.x will be the last release(s) that work on Windows 7, Windows 8.1, or on any 32-bit/x86 version of Windows. It has become significantly more difficult and time consuming to support these lately, not very many people are using them, and I can no longer justify the cost and frustration of keeping support for these afloat. Starting with Paint.NET v4.4, only Windows 10 and 11+ will be supported, and only on 64-bit (x64 and ARM64). Once Paint.NET v4.3.3 is released, I will start working on v4.4 and will only release v4.3.x updates on an as-needed basis and only until v4.4 is completed.

Get the update

• Microsoft Store release
  • You can purchase it here. This helps fund development and is an alternative or supplement to sending in a donation.
  • If you already have it installed, the update should happen automatically once Microsoft certifies the update, usually within the next day or two. To get the update immediately (once it’s certified), you can follow the instructions listed here.
• Classic Desktop release
  • Download the installer directly (web installer for all CPUs and OSes). This is the recommended download if you don’t have Paint.NET installed. It can also be used to update the app.
  • If you already have it installed, you should be offered the update automatically within the next week or so, but you can also get it immediately by going to Settings -> Updates -> Check Now.
  • Offline Installers and Portable ZIPs are available over on GitHub.

Changes since v4.3.2:

• New: The app has been migrated to .NET 6, which has improved both rendering and startup performance
• New translation: Catalan (ca)
• New translation: Corsican (co)
• New translation: Thai (th)
• Changed: The /createMsi command for the installer has been removed. Instead, you can now download MSIs directly from the GitHub releases page.
• Improved various UI controls for Dark Theme, e.g. scrollbars (Win10 v1809+ only)
• Fixed the way various UI controls look on Windows 11, e.g. buttons and drop-down lists
• Fixed the View -> Zoom to Window command when using the keyboard shortcut (Ctrl+B), which was resetting instead of toggling the zoom level
• Improved performance during the "extracting" stage of the installer by migrating away from Nullsoft Scriptable Installer System (NSIS)
• Reduced the download size on ARM64 by about 33%
• Fixed a rendering bug in the Dents and Polar Inversion effects, as reported here: https://forums.getpaint.net/topic/1...rtifactsglitches-was-this-an-intended-change/
• Fixed a memory leak in the selection renderer that was consuming gigabytes of GPU memory, resulting in crashes. Thanks to @Zagna for finding this and testing the fix! https://forums.getpaint.net/topic/1...y-jump-forward/?do=findComment&comment=587772
• Fixed some GDI object leaks, particularly with the Save Configuration dialog, which would eventually result in a crash. Thanks @rechlin for finding and reporting this! https://forums.getpaint.net/topic/118785-crash-due-to-running-out-of-gdi-objects/
• Fixed a memory leak in Settings -> Tools. Thanks @otuncelli for finding this! https://forums.getpaint.net/topic/118785-crash-due-to-running-out-of-gdi-objects/#comment-588468
• Fixed an issue that was preventing new plugins from loading their native DLL dependencies as specified in their .deps.json file
• Fixed the app crashing after an effect plugin crashes when you choose to restart the app
• Fixed a crash while drawing a selection, right-clicking on the History window before releasing the left mouse button, and then clicking to redo a history entry, as reported here: https://forums.getpaint.net/topic/1...lection-glitch-and-then-history-jump-forward/
• Fixed a text rendering bug in some parts of the UI, mostly in Effects, as reported by @midora over at https://forums.getpaint.net/topic/1...-in-filetype-shows-artifacts-after-scrolling/
• Fixed the "untitled:" file name argument prefix, which was preventing Window Clippings from being able to send screenshot
• Fixed some registry keys that were not being deleted during uninstall
• Fixed the PdnRepair utility on Windows 7
• Fixed some inconsistencies with the MSI as compared to v4.2.16 which were causing problems for some deployments
• Updated the bundled AvifFileType to v1.1.17.0, courtesy of @null54, which updates the AOM version and fixes a crash when reading large EXIF blocks. See its GitHub releases page for more info.

Changes since 4.3.3 alpha build 7988:

• New translations: Catalan (ca), Corsican (co), and Thai (th)
• Fixed compatibility with 38 plugins, built with CodeLab, whose Help functionality was broken by a change in .NET 6's implementation of GZipStream.Read(). Thanks @toe_head2001 for finding the culprit, and @AndrewDavid for extensively testing the fix!
• Fixed compatibility with the ArgusPaintNet.Convolution effect plugin
• Fixed a crash that could happen when opening Settings -> Diagnostics
• Fixed a memory leak with Settings -> Tools. Thanks @otuncelli for finding this!
• Updated the bundled AvifFileType plugin to v1.1.17.0, which fixes a crash when reading large EXIF data blocks. Thanks @null54!

This is a hotfix for the recently released version 4.3 update.

Changes since 4.3.1:

• Fixed a hang at app startup on systems using certain locales, such as Thai (th-TH)
• Improved performance of Settings -> Tools, which used to take 6-7 seconds to open. Now it takes about 1 second, thanks to @Bruce Bowyer-Smyth
• Fixed ReadOnlyBoundToNameValuesRule for IndirectUI-based plugins. It was not initializing correctly, although it would work correctly afterward.

Get the update

• Microsoft Store release
  • You can purchase it here. This helps fund development and is an alternative or supplement to sending in a donation.
  • If you already have it installed, the update should happen automatically within the next day or two. To get the update immediately, you can follow the instructions listed here.
    
• Classic Desktop release
  • Download the installer directly (web installer for all CPUs and OSes). This is the recommended download if you don't have Paint.NET installed. It can also be used to update the app.
  • If you already have it installed, you should be offered the update automatically within the next week or so, but you can also get it immediately by going to ⚙ Settings -> Updates -> Check Now.
  • Offline Installers and Portable ZIPs are available over on GitHub.

This is a hotfix for the recently released version 4.3 update.

Changes since 4.3:

• Fixed an issue with using Explorer's "Open With" menu on Windows 7, 8.1, and some editions of Windows 10
• Fixed image thumbnails in Explorer's Details View only having a generic document icon instead of the Paint.NET icon
• Fixed a spurious, harmless error in Settings -> Plugin Errors
• Fixed a race condition that could cause a crash
• Fixed not being able to use Ctrl+C to copy text from the Setup Downloader, which is especially important for troubleshooting

Changes since 4.2.16:

• New: The app has been migrated to .NET 5, and performance has been greatly improved as a result.
• New: ARM64 is now natively supported, which improves performance on devices such as the Surface Pro X.
• New: .NET no longer needs to be installed on the system because the app now uses self-contained deployment.
• New: Portable ZIPs are now available. Please note that portable installations do not currently update automatically.
• Improved performance of most effects and other compute-intensive tasks by about 20% on average, due to .NET 5’s improved code generation (JIT).
• Improved startup performance for the Microsoft Store release. Previously, .NET Framework’s NGEN was unavailable for Store apps, but now .NET 5 enables self-contained deployment along with ReadyToRun + crossgen, which serves the same purpose.
• Improved performance:Many areas of the app have been optimized to use SIMD (SSE2/3/4.1, AVX2) on x86/x64:
  • Drawing on an image with a large number of layers is faster
  • Drawing with the Gradient Tool’s alpha mode is faster
  • Drawing with the Recolor tool is faster
  • Drawing with the Eraser or Clone Stamp tool is faster when using a color whose alpha value is less than 255
  • Drawing with the Overwrite blend mode is faster
  • Drawing with the Shapes tool is faster, due to improved compositing performance
  • Drawing with a brush tool without antialiasing is faster
  • Tile compression has lower overhead due to being optimized for SSE2 and AVX2
  • Working with complex selections is faster
  • Many other optimizations all throughout the application and rendering engine
• Improved performance of loading custom Shapes by ~16x on 2nd and subsequent app starts.
• Improved performance of the Magic Wand tool by a substantial amount.
• Improved performance of the Paint Bucket tool by a substantial amount.
• Improved performance of the Paint Bucket when changing the color or certain other toolbar settings by not recalculating the stencil buffer for the filled area. Changes should now be visible immediately.
• Improved performance of Polar Inversion by 3x, mostly as a corollary to fixing a bug that was causing hangs, and a little bit due to .NET 5.
• Improved performance on systems without HyperThreading by reserving 1 core for the UI. Performance is also improved on systems with it by utilizing more of the logical cores.
• Improved performance while installing or updating the app, due to no longer needing the "Optimizing performance for your system" stage (NGEN has been replaced with ReadyToRun via crossgen).
• Improved memory usage when custom shapes are installed so they don’t litter the heap with hundreds of thousands of boxed value types (e.g. floats and points).
• Improved selection antialiasing quality by using a 4×4 super sampling filter instead of a 3×3 super sampling filter. The code has also been optimized to use SSSE3 on x86/x64.
• Improved: Effect and File Type plugins can now be organized into folders. The plugin loader will recursively search for DLLs up to 1 folder deep.
• Fixed a bug when saving with "Auto Detect" bit-depth which was causing fidelity loss on some images that already had 256 colors or less. This was reported here: https://forums.getpaint.net/topic/1...olors-being-dithered-when-saved-with-palette/
• Fixed: There were some issues with zooming in/out using the keyboard, where the anchoring point was not calculated correctly, causing the canvas to drift in the wrong direction.
• Fixed the inability to use middle-mouse panning after using a selection tool and pressing delete before releasing the mouse button.
• Improved: Plugins are now loaded into isolated AssemblyLoadContexts, which improves stability and resiliency to various problems with versioning, loading dependencies, plugin bugs, and incorrect plugin installation.
• Fixed a crash when trying to draw a fixed-size rectangle selection that was larger than the image.
• Fixed a bug with the Tolerance slider where both 58% and 59% would be displayed as 58%, due to a rounding issue. The correct value was actually being used, it just wasn’t being displayed correctly.
• Added a /disablePlugins command-line argument to aid in troubleshooting various issues with app startup and incorrect plugin installation.
• New: Additional directories can now be specified for plugin discovery, which (e.g.) enables the use of OneDrive for storing plugins. See here for more info: https://forums.getpaint.net/topic/1...plugins-folder/?do=findComment&comment=586013
  • Note that this does not work with the portable version of the app, but you can install plugins next to the app so it isn’t necessary.
• Updated the bundled AvifFileType plugin to v1.1.15.0, courtesy of @null54, which includes support for multi-layer AVIF files, and adds native support for ARM64. See the project’s GitHub Releases page for more information.
• Updated the bundled DdsFileTypePlus plugin to v1.10.10.0, courtesy of @null54, which adds native support for ARM64. See the project’s GitHub Releases page for more information.
• Updated the bundled WebPFileType plugin to v1.3.7.0, courtesy of @null54, which adds native support for ARM64. See the project’s GitHub Releases page for more information.
• Changed: FileType.IsReflexive() is now deprecated via [Obsolete], and is no longer honored. However, the Save Configuration dialog will no longer try to generate previews for FileTypes that do not specify any file extensions for loading, which is what this method was being used for.
• Known Issue: Due to crashing, GPU accelerated effects (Gaussian Blur, Motion Blur, Radial Blur) on ARM64 will actually use the CPU for rendering.

Changes since 4.3 alpha build 7921:

• Fixed the inability to use middle-mouse panning after using a selection tool and pressing delete before releasing the mouse button
• Fixed the ability to create MSIs with the installer using the /createMsi command-line parameter
• Fixed compatibility with these older plugins: Distort This!, Soft Proofing, Stickman, TR’s Morpher

paint.net 4.2.16 - released on April 21, 2021
This updates fixes and optimizes palette generation when saving at 8-bit depth or less, and also fixes any remaining issues with using "Auto-detect" for bit-depth. A new effect, Quantize (in the Effects -> Color menu), has been added, some bugs have been fixed, and bundled file type plugins have been updated.

• New: Effect -> Color -> Quantize, which applies palette reduction to 256 colors or less, along with dithering. This is the same algorithm used when saving images at 8-bit color depth or lower.
• Fixed and improved palette generation when saving at 8-bit color depth or less
• Greatly optimized performance of palette generation and image quantization
• Added option to choose between Octree (default) and Median Cut algorithms for palette quantization when saving at 8-bit color depth or less
• Fixed a crash in Move tools when the selection was 0-width and/or 0-height
• Added tooltips w/ shortcut keys to the Tools dropdown in the toolbar
• Fixed IndirectUI ColorWheel rendering (thanks @toehead2001!)
• Fixed a crash in the Text tool when using Ctrl+(Left,Right,Backspace,Delete) (thanks @Bruce Bowyer-Smyth!)
• Changed: New layers are now filled with #00000000 instead of #00FFFFFF
• Fixed a crash when working with selections (OutOfMemoryException)
• New: Effects can now access the Document's DPI via EffectEnvironmentParameters.DocumentResolution
• Fixed drawing of the color palette in the Colors window when using some non-standard DPI scaling settings (e.g. 1.15x)
• Fixed a crash when using EdHarvey's Threshold plugin
• Fixed the return value from PdnRegion.GetBoundsInt() so it's not anchored at (0,0) unless it should be
• Fixed premultiplied-to-straight color conversion on some code paths (thanks @null54!)
• Updated bundled AvifFileType plugin to v1.1.11.0, which includes performance optimizations and bug fixes. See its GitHub releases page (https://github.com/0xC0000054/pdn-avif/releases) for more info.
• Updated bundled DDSFileTypePlus plugin to v1.10.8.0, which uses an updated version of DirectXTex (2021-04-06).