Open CAD Studio: baixar versions anteriors

OpenCADStudio - Release v2026.42 (2026-10-18)
> Summary: Major release introducing native dynamic block authoring and evaluation; new DGN, PDF, and 3D model import workflows; a redesigned docking and Graphic Attributes workspace; broad web/PWA improvements; and extensive drafting, layout, automation, plugin, rendering, and file-compatibility work.
🌟 Notable Release Notes
- Dynamic Block Parameters: Karim Jerbi implemented native Point, Linear, Polar, XY, Rotation, Alignment, Flip, and Visibility parameter authoring and editing, including parameter grips and base-point insertion in the Block Editor. (Contributed by @KarimJerbi)
- Dynamic Block Actions & Tables: Added Move, Scale, Rotate, Flip, Stretch, Polar Stretch, and Array action authoring and evaluation, plus Lookup tables, Test Block evaluation, and Block Properties Tables. (Contributed by @KarimJerbi)
- Import Workflows: Added IMPORT, DGNIMPORT, PDFIMPORT, and PDFSHXTEXT support, with DGN V7/V8, 3D Studio, SAT/ACIS, STEP, IGES, WMF, PDF geometry, and SHX text recognition. (Contributed by @ramox81, @HakanSeven12, and @sclMAX)
- Workspace & Graphic Attributes: Introduced vertical palette rails, auto-hide flyouts, floating and grouped panels, draggable tabs, and a persistent Graphic Attributes palette. The Graphic Attributes palette was contributed by @MarcelP102.
- Browser & PWA: Added in-place browser saving, offline PWA operation, crash recovery, web plotting, worker-routed file operations, expanded format support, and bounded image decoding. (Contributed by @afonsop)
- Drafting, Views & Layouts: Added -VIEW, DVIEW, MVSETUP, PUBLISH, REFEDIT, TXT2MTXT, ATTMAN, layout viewport creation and copying, and updates to selection, snapping, measurement, and geometry editing. (Contributed by @ramox81, @HakanSeven12, @gianlucafiore, and @turbuczn)
- Automation & Plugin APIs: Expanded MCP preflight, entity schemas, batch bindings, guides, and capture resources; added reference-only entities, plugin entity labels, and control notifications. (Contributed by @KarimJerbi, @YsDirector, and @schoeller)
- 3D Modeling & Exchange: Added associative extrusion/revolution/loft sources, associative arrays, mesh section tools, and FBX export. (Contributed by @ramox81 and @HakanSeven12)
🚀 New Features
Blocks & Definitions
- Block Definition & Write Block: Added command-line and dialog workflows for BLOCK/BMAKE and WBLOCK, with previews, block attributes, and open-in-editor actions. (Contributed by @ramox81 and @KarimJerbi)
- Block Editor: Added a dedicated authoring palette, contextual ribbon, definition Properties, save-as workflow, Test Block preview, and isolated session history with save checkpoints. (Contributed by @KarimJerbi and @HakanSeven12)
- Native Parameters: Added Point, Linear, Polar, XY, Rotation, Alignment, Flip, and Visibility parameter placement and editing, with selection and editing of native parameter grips. (Contributed by @KarimJerbi)
- Dynamic Actions: Added Move, Scale, Rotate, Flip, Stretch, Polar Stretch, and Array actions, including independent reference grips, editable action selections, and reference re-evaluation after definition changes. (Contributed by @KarimJerbi)
- Visibility States: Added visibility-state authoring and block visibility commands, plus a visibility dropdown for dynamic block references in Properties. (Contributed by @HakanSeven12 and @KarimJerbi)
- Lookup & Block Properties Tables: Added Lookup authoring, row evaluation on block references, reverse input validation, polar angle input, and Block Properties Table authoring from the editor. (Contributed by @KarimJerbi)
- Block Attribute Manager: Added BATTMAN/ATTMAN with staged changes and one undo step per Apply. (Contributed by @ramox81)
- Associative Arrays: Added ARRAYRECT and ARRAYPOLAR, editing from native records, and source editing through ARRAYEDIT. (Contributed by @HakanSeven12)
- Block Attribute Synchronization: Added ATTSYNC to rebuild block-reference attributes from their definitions.

OpenCADStudio - Release v2026.41 (2026-10-11)
> Summary: Major feature milestone introducing the Sheet Set Manager (SHEETSET) with .dst project support; the automated entity COUNT command and palette with dynamic table generation; network-integrated associative swept surfaces (SWEEP); complete right-to-left (RTL) text layout in MTEXT; independent dimension style per-end arrowheads (DIMBLK1/DIMBLK2); table cell style overrides; GPU hardware selection options (Metal/OpenGL); MCP differential capture payload optimizations; and extensive drafting, plotting, spatial indexing, and memory fixes.
🌟 Notable Release Notes
- Sheet Set Manager (SHEETSET): Introduced a complete Sheet Set Manager palette, .dst project creation wizard, cross-drawing sheet fields, drawing lock-file coordination, and background sheet opening. (Contributed by @ramox81 and @HakanSeven12)
- Automated Entity Counting (COUNT): Added the COUNT feature and palette, providing visual block counting across model space or designated polygon boundaries, collision/overlap diagnostics, and live evaluated count table insertion. (Contributed by @ramox81 and @HakanSeven12)
- Associative Swept Surfaces & 3D Modeling: Added network-tracked associative swept surfaces (SWEEP) with path-relative base points, miter corner history, B-rep MASSPROP, and curved offset/fillets in the geometry kernel. (Contributed by @ramox81 and @HakanSeven12)
- Advanced Typography & Table Overrides: Fully compliant right-to-left (RTL) text rendering in MTEXT, exact evaluation bounding boxes for shaped/rotated text fields, and in-place cell style overrides with automated formula recomputation. (Contributed by @ramox81)
- Dimension Style Independent Arrowheads (DIMBLK1/DIMBLK2): Supported independent arrowhead styles for start and end leaders with real-time preview rendering and style synchronization. (Contributed by @KarimJerbi)
- GPU Platform Routing & Hardware Info: Added hardware-aware GPU backend routing (Metal on macOS, automated OpenGL fallback for legacy hardware), hardware information in About dialog, and dedicated Graphics options tab. (Contributed by @KarimJerbi)
🚀 New Features
Management & Palettes
- Sheet Set Manager Palette & Wizard: Added Sheet Set Manager palette, .dst file reload, import sheet statuses, view categories, and Place-on-Sheet actions. (Contributed by @ramox81)
- Count Palette & Table Generator: Added interactive block counting, invalid area inspection dialog, and live count table generation with field references. (Contributed by @ramox81)
- Quick Searchable Layer Palette: Added fast search and filter command for drawing layers. (Contributed by @gianlucafiore)
3D Modeling & Surfaces
- Associative Sweep: Supported surface sweep associativity within the drawing dependency network, honoring custom path alignment and miter corners. (Contributed by @ramox81)
- B-rep Mass Properties & Kernel Operations: Added MASSPROP mass evaluation from solid B-rep, curved OFFSET/FILLET, and sphere-cylinder boolean operations. (Contributed by @HakanSeven12)
- UCS Face Alignment: Aligned UCS Face origin and axes to the nearest vertex and edge with solid face raycasting. (Contributed by @yztink)
Text, Fields & Tables
- RTL Text Layout: Added right-to-left word layout, leading space preservation, and mixed-font character advances. (Contributed by @ramox81)
- Table Cell Overrides & Formulas: Supported per-cell style overrides from either layout and automatic formula recomputation after editing. (Contributed by @ramox81)
- Rotated & Shaped Text Field Boxes: Accurate evaluation boxes, per-field shading backgrounds, and UPDATEFIELD traversal reaching nested blocks. (Contributed by @ramox81)
UI & Graphics
- GPU Platform Backends & Hardware Info: Refined GPU platform selection (Metal on macOS, OpenGL fallback for legacy hardware), hardware info in About dialog, and dedicated Graphics options tab. (Contributed by @KarimJerbi)
- ViewCube UCS Cache: Cached UCS picker names behind an epoch to accelerate View

OpenCADStudio - Release v2026.40 / v2026.40.1 (2026-10-05)
> Summary: Unified release notes for release week 2026.40. Release v2026.40 was pulled shortly after release and replaced by v2026.40.1. This document merges the complete feature wave—introducing the interactive FIELD evaluation command and dialog, ATTDEF attribute definition workflow parity, a redesigned tabbed Blocks palette with drag-and-drop insertion, DWF/DGN and point cloud underlays, dynamic input control (DYNMODE), script engine upgrades (.scr), TrueType embedded font PDF export, and smooth exponential zoom navigation—along with the hotfixes that triggered the v2026.40.1 replacement (instant GPU layer visibility toggling without CPU re-tessellation, 3D cylinder height input validation, load-time BLOCK/ENDBLK sentinel recovery, and MCP server request lifecycle & cancellation hardening).
🌟 Notable Release Notes
- Instant Layer Visibility Toggling: Optimized layer show/hide operations to toggle visibility states directly on GPU batches without triggering CPU re-tessellation passes. (Contributed by @HakanSeven12)
- FIELD Evaluation System & Dialog: Introduced the full FIELD command and UI dialog, supporting real-time text/MText field evaluation, table formula integration, block placeholders, attribute fields on insert, and automatic plot-time updates. (Contributed by @ramox81)
- Attribute Definition (ATTDEF) Parity: Added the complete ATTDEF and -ATTDEF dialogs, tag visibility management, entity property grid synchronization, and ribbon block definition integration. (Contributed by @ramox81)
- Blocks Palette Overhaul: Redesigned the Blocks palette with categorized tabs (Current Drawing, Recent, Favorites), insertion scale/rotation options, drag-and-drop canvas insertion, and -INSERT CLI parity. (Contributed by @ramox81)
- MCP Multiscale Pyramidal Tiling Protocol (DeepZoom): Implemented multiscale pyramidal tiling protocol for MCP vision tools (src/app/control/vision.rs, src/mcp.rs), exposing DeepZoom manifests (cad://session/{session_id}/pyramid/manifest.json), on-demand cached multi-resolution PNG/JSON tiles (tile/{level}/{x}/{y}), and tile/pyramid_manifest parameters in ocs_capture to allow vision agents to navigate dense drawings without exceeding token limits. (Contributed by @KarimJerbi)
- Set-of-Marks (SoM) Visual Grounding & Vision ID Stamp: Added high-contrast numbered visual ID badge stamping (draw_som_badge) on entity centroids in viewport captures, bidirectional entity grounding manifests mapping stamps to handles, layers, types, and world coordinates, regional camera framing, and 2-point raster calibration. (Contributed by @KarimJerbi)
- Visual Differential Streaming & Standardized Spatial Metadata: Added pixel-level visual diff engine (compute_visual_diff) with dirty region cropping (diff_mode: crop), WCS CRS alignment (_spatial), and forward/inverse affine coordinate matrices to dramatically reduce vision token consumption. (Contributed by @KarimJerbi)
- Drawing Load Sentinel Recovery: Materialized missing BLOCK and ENDBLK sentinel entities on damaged drawings during document load, preventing crashes and corrupt database states. (Contributed by @KarimJerbi)
- Underlays & Raster Improvements: Native support for attaching DWF and DGN underlays (UNDERLAY), point cloud attachments (POINTCLOUD), image transparency controls, and image frame toggling (IMAGEFRAME). (Contributed by @ramox81)
- PDF TrueType Font Embedding: Enhanced PDF export to embed subset TrueType fonts directly into PDF output, ensuring crisp vector text rendering without font substitution artifacts. (Contributed by @Chrisyeh1983)
- MCP Server Lifecycle Hardening: Enforced accurate time-to-live policies (60 seconds for GUI resources, 1 hour for tools), request cancellation (tasks/cancel), and explicit request/document tracking on GUI capture requests. (Contributed by @KarimJerbi)
🚀 New Features
Drafting & Commands
- Signed Offset & Live Drag Preview: OFFSET opens with live interactive geo

Highlights
- Weekly 2026.39 release for web and desktop from the same source revision.
Modeling, drawing and annotation
- seat axis steps on 3D snaps; raised bases follow the cursor (#1030)
- show Inventor drawing views, each in its own viewport (#1285)
- per-piece snap bounds, linear image layering, snap op checks
- node graph overlay; move to opencadcodec/opencadkernel/opencadgraph
- skip wire distance math for solid lines and optimize handle parsing
- pin cadcodec at dd1d7bf and cadkernel at 6eae7c9
Rendering, plotting and file fidelity
- normalize missing dimension arrow block references on save
- pin opencadcodec 42b44d2 (DXF saves polar stretch actions)
- give the synthetic plot image the new pixelated field
- save and open node graphs as .ocg files
- Add audited, versioned MCP save workflow (#1452)
- test(plot): pin the paper-scale tests to millimetre drawing units
Interface, web and plugins
- refactor(commands): plugin dispatch ends through finish_dispatch
- record last_cmd on plugin dispatch to repeat on Enter
- drop the new boundary when the clip is refused; translate prompts
- CLIP on images and viewports, IMAGECLIP, VPCLIP, linked clip boundaries and clip depth
- follow-ups to the XCLIP merge
- show ribbon command icons in menus and suggestions
Maintenance
- pin opencadcodec 4f7bd51 (merlinnot codec fixes #56-#61)
- install on Linux as a Flatpak from FlatPark (#1487)
- Insert Reference panel: separate Attach XREF and Attach PDF buttons
- lay automatic text out from the style again (#1412)
- no stroke-font tracking after big-font and fallback glyphs (#1470)
- SVG ticks and page arrows instead of glyphs
Full Changelog: v2026.38...v2026.39

Highlights
- Weekly 2026.38 release for web and desktop from the same source revision.
Modeling, drawing and annotation
- pick up cadcodec 5b682ed (upstream acadrust sync) and cadkernel 6f046af
- open locked, shrinking and cloud-placeholder drawings without crashing
- pick up cadcodec #47 and cadkernel #66; guard the re-align length
- point cadkernel at upstream after #1352; unify duplicate-constraint message
- harden dimension and constraint bar changes
- solve concentric geometry in kernel
Rendering, plotting and file fidelity
- drop the stray lock fixture; align merged plot code across targets
- load plot style tables written by other applications
- Windows printer media and printable areas
- send Windows plots to the chosen printer, name the default, report failures
- page-setup units, custom scale, dialog options and plot sysvars
- Add GPU backend probe with automatic fallback for older GPUs
Interface, web and plugins
- extract and speed up layer-usage table rebuild
- Control: a point step that takes keywords accepts points
- ci: type-check the web target on pushes to main and on pull requests
- Web control: open a drawing from bytes
- Fix wasm32 build: gate the font download and XREF open call sites
- Nix flake (dev shell + package build), object snap on by default,
Maintenance
- ci(release): parse codesign entitlements as xml on newer runners
- keep isometric drafting session-only
- Hover an object-mode Horizontal/Vertical glyph without endpoint markers
- Bring the Equal constraint to reference parity
- Turn an object onto its Horizontal/Vertical axis before solving
- OK / Apply / Close with a discard guard
Full Changelog: v2026.37...v2026.38

Highlights
- Weekly 2026.37 release for web and desktop from the same source revision.
Modeling, drawing and annotation
- Update codec and kernel dependencies
- Handle spatial division curve edge cases
- Update cadkernel for spatial angle bisectors
- Update cadkernel for spline editing
- Update curve editing dependencies
- Update drawing command dependencies
Rendering, plotting and file fidelity
- Render procedural checker materials correctly
- Tell the user when the scene is drawn without a GPU
- render shaped cursive glyphs for arabic and complex scripts
- i18n(tr): shorten shaded render mode labels
- translate render mode choices
- render wide polyline segments as flat 2D rectangles instead of rounded pill shapes
Interface, web and plugins
- Translate Measure ribbon label
- Show the exact build in About, Copy Info, REPORT and --version
- introduce standardized 25-metric CAD and UI benchmark suite
- Move parametric tools to their own ribbon tab
- Simplify Modify ribbon extensions
- Align and compact Draw popup with theme accent border
Maintenance
- Use a centered triangular ruler for measurement tools
- Remove implicit sketch constraint inference
- clean up mobile sponsor artwork
- add mobile sponsor banner
- Improve command workflow for undo, move, stretch and fillet
- keep hidden-border content visible
Full Changelog: v2026.36...v2026.37