Release LeoCAD 26.09 · leozide/leocad

Redesigned undo and redo support across a much broader range of editing actions, including object and model properties, grouping, duplication, visibility, keyframes, step editing, camera and light changes, painting, and mouse-driven transforms.
Added a modern rotation gizmo with trackball and camera-plane rotation, camera-axis rotation, and clearer direction feedback.
Improved viewport text rendering with smoother SDF glyphs, configurable halos, unified overlay colors, and sharper, more legible labels.
Added drag-and-drop reordering to the Model List and support for merging multiple files into a project.
Added an option to open submodels directly from the parts picker, plus improved drag-and-drop into inline models.
Added Chinese (Simplified) localization.

Added Zoom and Smart Zoom gestures.
Added drag-and-drop support for part categories.
Improved high-DPI presentation, including Retina text and UI scaling.
Improved macOS packaging with Universal and Apple Silicon builds.
Refreshed dialogs and several user-interface workflows, including group editing, image export, set selection, and update handling.

Fixed textures in subparts and a texture-loading race condition.
Fixed timeline selection and move-selection behavior, including synchronization after undo and redo.
Fixed property-edit cancellation, keyframe and show-step undo behavior, and undo after submodel renames.
Fixed a crash in Categories preferences and an empty Shortcuts list.
Fixed middle-click behavior when closing model tabs and refresh behavior for recent files.
Fixed preview rendering across multiple model views and OpenGL widget event forwarding.
Fixed POV-Ray render completion and Blender-render failure handling.

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