[natron] A new release version is available

A new version of Natron is available. Below is the changelog listing difference compared to the current packaged version (2.3.15).

Version 2.4.3

Added support for render progress in taskbar icon (Windows/macOS). #766
Added palette support in color selector. #754
Allow creating a node with the same name that was just deleted. #732
Natron can now keep up to 32 project backups (see Preferences/General/Save versions). #562
Only display the overlays for nodes that are in the viewer render path and have their properties panel maximized. Can be disabled in Preferences/Viewer. #744
Fix rendering from Python (by calling app.render()) when nodes use Python expressions. #560
Fix drawing of closed Bezier overlays. #659
RotoPaint does not reconnect to the viewer at each stroke by default. Added a button to the viewer interface to re-enable this behavior. #641

Fix OpenFX overlay actions being executed in the wrong order. #711
Fix enabling node preview from Python. #710
Do not display the "Loading project" splashscreen on macOS 12+ to avoid crash due to Qt4 bug. #712

Fix bug in Transform plugin interact. #708
Fix EXR reader outputing the color plane only when an OCIO transform is applied. #714
The OpenColorIO plugins can now use OpenColorIO 2.1.

Default number of render threads is more reasonable on multi-core systems: min(num_cores, RAM/3.5Gb). #554
Fix checkerboard drawing on macOS Catalina and later. #614
Fix undoing "Reset to default" on parameters. #630
Fix NodeGraph manipulation and navigation issues. #491 #627
Fix Retina/High-DPI display issues on macOS, Windows and Linux/X11. #635
Fix multi-dimensional parameter linking (bug introduced in 2.4.0 #594). #631
Fix bug where any argument containing an integer between commas would be interpreted as a frame range. #644
Python: app.saveProject and app.saveProjectAs now do project variable substitution, as in app.saveProjectAs("[Variable]/output.ntp").
Fix ASCII curve import. #656
New color selection dialog for RGB and RGBA knobs. #210
Fix histogram smoothing (was 5 times too strong).
Add Python functions guiApp.copySelectedNodes and guiApp.pasteNodes. #390 #674 #675

Transform, CornerPin, Position and Ramp nodes now display the motion path.
HueCorrect now has the ability to do hue vs. hue adjustments, with an option to change the background curve guide. #610
Merge: Fix behavior on most operators when A is not connected or A's RoD and B's RoD are disjoint. #647
Reformat: fix bugs when "turn" is checked with Resize Type = None or Type = Scale.
Write: Remove file first when overwriting. #666
Mirror: Fix crash. #660
SeNoise: Add option for colored noise.

Updated documentation. #572 #566 #551 #539 #538 #537 #520 #514
Handle console output on Windows. #524
Detect user installed fonts on Windows 10. #523
New Windows installer. #596
Improvements to SequenceFileDialog. #565
Snap timeline alpha cursor to nearest frame. #574
Handle UTF-8 values in KnobTable (fixes use of project path containing Unicode). #578
Tabs UI adjustments. #564
Do not allow Python keywords as node name or scriptname. #588
Always serialize nodes with an expression or a link, even if they have the default value. #585
Support cloned group nodes or hard links between groups. #568 #579 #594 #598
Default keyframe interpolation method for strokes and shapes is now "Smooth" (was "Linear"). #597
Fix animation of Roto Beziers with non-broken tangents. #102
Remember properties panels state when reopening project. #168
Fix slow nodegraph display on macOS 11 Big Sur. #606

ReadFFmpeg, WriteFFmpeg: upgrade to work more nicely with the FFmpeg 4 API. #148 #231 #241
ReadFFmpeg: add support for reading AV1 & Canopus HQ/HQX/Lossless.
WriteFFmpeg: add support for writing AV1 & Cineform HD.
Fix another bug in DenoiseSharpen that caused crash when stoping/aborting. #300
Fix Lin2Log to be consistent with Log2Lin. #570
Merge: never consider RGB as being transparent by default - this is OK for unpremultiplied compositing (After Effects) but is invalid in a premultiplied compositor such as Natron or Nuke. Users still have the option to ignore the alpha channel. #571
WriteOIIO: Do not add "Color." to the channel names of the color plane (affects mainly OpenEXR). #583
Writers: when writing RGBA to format that does not support alpha, just drop alpha - don't premultiply. #582
RGBtoHSL: Fix bug with white and superwhite values. #512
Reformat: Default to project size. #533