Paint.NET full changelog

Fixed a silent crash that was preventing the app from opening when double-clicking an image in Explorer, due to a bug in .NET's ProfileOptimization class
Fixed some canvas navigation keyboard shortcuts that have some overlap with the new tab movement shortcut keys (Ctrl+Shift+PageUp/PageDown)
Fixed a crash in the Move Selected Pixels tool when the GPU does not support Direct3D Feature Level 11
Fixed another rare crash when rapidly undoing changes made with the Move Selected Pixels tool
Fixed a few typos, inconsistencies, and bugs in some plugin APIs
Updated the bundled AvifFileType plugin to v1.1.27.0, which now supports loading the primary image of an animated/multi-frame AVIF
Updated the bundled WebPFileType plugin to v1.3.21.0, which now supports loading the first frame of an animated WebP image instead of saying the file is not supported

Fixed: If an image file (such as .png or .jpg) is actually a WebP image, the WebPFileType will be used for loading instead of WIC's WebP codec (which doesn't work correctly)
Fixed a crash when undoing brush strokes
Fixed a rare crash in the updater UI when exiting the app
Fixed a crash that was preventing CodeLab's UI Preview functionality from working
Updated the bundled DdsFileTypePlus plugin to v1.12.8.0. It now supports DDS files from S.T.A.L.K.E.R.: Shadow of Chernobyl, and has fixed BC5 Signed saving (thanks @null54!)

New: Edit -> Paste now supports base64-encoded images, which enables copying images from Microsoft Teams (thanks @null54 for the implementation!)
Fixed a rare bug that would cause selection tools to not work until the image was closed and reopened
Fixed: All mouse cursors will now honor the Windows setting for adjusting the mouse pointer size
Fixed a rare crash when rapidly undoing multiple actions
New: Plugins can now access the built-in JPEG and PNG FileTypes through two new methods on IFileTypesService
New: The Paint.NET Plugin API Documentation website is now live at https://paintdotnet.github.io/apidocs/
Fixed: All of the custom Direct2D effects now have runtime metadata (DisplayName, Author, Category, Description), which is useful for a UI that lets the user browse them (e.g. node editor)
New: Added convenience constructors to many Direct2D effects so that they can be used without declaring a new local variable

Fixed: When using Alt+Tab, the internal state of the Alt key could get 'stuck' when the Shapes or Line/Curve tool was active, causing the next shape or line/curve to be drawn from the center
Fixed: Sliders were not responding to the mouse wheel (regression in 5.0.8)
Fixed the DeviceEffect.Properties.Min/MaxInputCount properties, which were throwing an ArgumentException (for plugin authors)
Fixed a rare crash at app exit due to a race condition in the auto-updater
Fixed a rare crash when the system resumes from sleep mode, due to a race condition in DWM reporting whether composition is enabled
Fixed a rare crash when using copy+paste due to .NET Runtime issue
Updated the bundled DDSFileTypePlus plugin to v1.12.2.0, which fixes the inability to save on ARM64 systems
Updated the bundled WebPFileType plugin to v1.3.19.0, which fixes the inability to save on ARM64 systems

Improved: The primary/secondary dropdown in the Colors window has been removed. The active color is now indicated in the color box itself.
Improved: The Colors window will now remember whether it's in the expanded state (More vs. Less).
Fixed: In the Colors window, left clicking in the color wheel or the color palette will always set the active color, and right clicking will always set the inactive color. This was not always consistent before.
Changed: The key for centered shape drawing and uniform resizing has been changed from Ctrl to Alt so that it does not collide with zooming with the mouse (Ctrl + Mouse Wheel)
Fixed: The keyboard shortcut for previous/next tab is now Ctrl + Page Up/Down, to match other applications
New: You can now use Ctrl + Shift + Page Up/Down to move the current tab left or right
Fixed: The printing UI is now run out-of-process, which should fix a slew of reliability problems (hangs, crashes)

This is a small update with some quality-of-life improvements and bug fixes.
New: Ctrl+Shift+Page Up/Down can now be used to switch between tabs.
Improved: The selection highlight is now hidden when the Layer Properties dialog is open.
Improved: The Move Selection Tool will not be forced to commit its state when the image is being saved, thus preserving history entries.
Changed the icon for Contiguous mode (Magic Wand and Paint Bucket tools) to have better contrast with the icon for Global mode.
Fixed: Shortcut keys are now listed for the tooltips in the Layers and History windows and for the selection combine modes in the toolbar. The help text for the Magic Wand and Paint Bucket tools also notes that holding Shift will use Global mode.
Fixed the Edit -> Copy and Copy Merged menu items from being incorrectly enabled when no image is open.
Fixed an issue where the selection highlight would not appear in some cases.