VTracer App Changelog

All notable changes to the VTracer desktop app will be documented in this file.

1.0.0-alpha.4 - Build 116 - 2026-08-29

VTracer 2 preview. Trial license can be activated in app.
SVG saving without a dialog. A preferred save folder can be set in Preferences, or the app can keep asking each time.
A source image display preference, choosing smooth or pixelated scaling for the source image.
Selected SVG shapes now show their bounds, and can be dragged around the canvas to inspect what sits beneath them.
A configurable disk cache limit for VTracer 2, defaulting to 2 GB. Lowering it reclaims space immediately.

Pasting an image now works consistently across the app rather than only when the canvas held focus.

User-managed presets. A preset stores the complete tracing configuration and its source image; presets can be created or updated by name, reordered, deleted, and restored to the shipped defaults.
Side-by-side comparison mode with synchronized, mirrored views of the source image and generated SVG. Switching between overlay and side-by-side comparison preserves the canvas position and zoom.
A new etched-cat sample demonstrating adaptive black-and-white tracing.

The canvas comparator and SVG rendering now remain sharp and stable while zooming, panning, dragging the divider, and switching comparison modes.

Trace sessions recover after an engine panic instead of leaving the app stuck with an unavailable session cache.
Large images and repeated image uploads no longer leave the frontend unable to start a new trace.

First public preview of the rebuilt VTracer desktop app.

Native VTracer 1.0 tracing for macOS and Windows, with Linux packaging support.
Cancellable tracing with stage-aware progress. Changing a tracing control aborts obsolete work and immediately starts the new trace.
Session caching that reuses expensive clustering work while tuning compatible curve and color fitting settings.
An interactive source/SVG comparator with a draggable divider, zoom controls, scroll-to-zoom, drag-to-pan, actual-size and fit modes, and a focused full-canvas view.
SVG shape inspection with yellow hover outlines and selectable curve nodes.
Full controls for color, black-and-white, and watershed clustering; stacked and seam-free cutout composition; pixel, polygon, and spline fitting; fixed palettes; adaptive thresholding; and curve simplification.
Open, paste, and drag-and-drop image input, including EXIF orientation normalization for camera images.
A scrollable sample preset strip with image credits.
Native SVG save dialogs and save completion feedback.
System light and dark themes.
In-app update checks, engine release notes, and open-source license information.

Tracing runs in the native backend rather than WebAssembly.
The desktop shell serves the frontend and API over an authenticated loopback HTTP session, aligning development and production behavior.

External links open directly in the default browser on macOS and Windows without displaying a command window.
Native context menus are suppressed across production app surfaces.