April 21, 2025
Autodesk Alias 2026 introduces Alias to VRED Live Referencing and VRED Rendering in Alias, and includes new modeling tools, such as Soft Proportional Modification, Variable Surface Offset, and a new Subdivision Check Model tool. Improvements to Trim Surface tools now make trimming workflows easier and faster. A variety of customer-reported crashes and issues have also been addressed.
New Features and Enhancements
Fixed Issues
Known Issues
New Features and Enhancements
For new features and enhancements in this release, see What's New in Alias 2026.
Fixed Issues
| General |
|---|
| Control Panel: The pick list now displays the correct name of the picked objects as expected. ALS-29010 |
| Variants Lister: You can now capture multiple Non Proportional Scale views as variants. ALS-14599 |
| Alias no longer crashes when using a 3D Connexion Puck/SpaceMouse Pro device to navigate the SBD window. ALS-29870 |
| Stage Editor: The active environment is now maintained when you open multiple .wire files and select Keep in the confirm dialog box. ALS-30382 |
| Alias no longer crashes after picking an object in the SBD window, then either typing a value in the promptline or switching the promptline from Abs to Rel. ALS-30337 |
| Stage Editor: Resolved performance issues when toggling visibility for files located on network drives. ALS-30716 |
| Modal windows, such as Save As, are no longer affected by the Window Transparency preference in the General Preferences. ALS-30281 |
| Switching Variants in the Variant Lister now works for nested references, resolving the issues with toggling visibility on and off. ALS-29334 |
| Fixed an issue with importing and saving Preference Profiles, which caused failures when switching to the imported Profiles. ALS-30267 |
| Export > Current Window: Fixed an issue that caused the image resolution to be degraded. ALS-ALS-31002 |
| UI |
|---|
| Skin tool: You can longer drag the Start and End Range manipulators to the point where they overlap. ALS-29102 |
| Arc tool (Keypoint Curves): The Spans control slider is now hidden when Curves & Surfaces is turned on in the Rational Flags section of the Construction Options. ALS-30378 |
| Color Editor: You can now set Hue values using a value range between 0 and 1 or 0 to 360. ALS-28973 |
| You can now open the Show menu, then press and hold the Shift key to select multiple Show options. ALS-23697 |
| Tool palette and shelf sub-menus now fully display regardless of how the palette or shelf is positioned in the viewport. ALS-29434 |
| The Cross-Section Editor opens now on single and double-click. ALS-28811 |
| Layers are now ordered as expected after dragging them into a folder. ALS-27102 |
| A new Gather Floating Windows option in the Windows menu resolves instances of undocked windows being difficult to locate when switching monitor set ups. See Gather Floating Windows. ALS-28898 |
| The preference for showing the ViewCube has been moved from the Modeling Windows section of the General Preferences to the Navigation section. ALS-24590 |
| Cross Section Editor: Values for the sections are now displayed in the editor. ALS-28818 |
| Docking a window to a collapsed window now automatically expands the resulting docked group. ALS-27218 |
| Tool Locator: Shift + LMB clicking on a tool icon in list now opens the tool options window. ALS-7483 |
| Modeling |
|---|
| Fixed an issue that caused the Curvature Evaluation diagnostic shader to display incorrect curvature direction when applied to meshes. ALS-28450 |
| Skin tool: Fixed an issue that caused Crown Values between 0.001 and 0.002 to have no effect when they are entered directly in the Control window. ALS-28995 |
| Fixed an issue that caused the Curve Curvature plot to be recreated after selecting Delete > Locators twice. ALS-29435 |
| Fixed an issue that caused Curve Curvature comb plots to change when the ViewCube hotkeys are used to change the view. ALS-29431 |
| Align 2008: Tool Defined is available again as an option for Continuity Check Type. ALS-29476 |
| Fixed an issue with the Layer Symmetry Plane that caused it to remain visible when the layer visibility is turned off. ALS-8939 |
| NURBS to Mesh tool: Resolved an issue that caused the tool to generate inaccurate results with large input surfaces. ALS-17161 |
| Freeform Curve Blend tool: Fixed an issue that caused Form Factor to generate incorrect results. Use the new Rebuild option for improved results. ALS-4416 |
| Fixed an issue that caused Alias to freeze when using the Square tool with certain settings. ALS-29659 |
| Text tool: You can now use the promptline to enter text for the Text tool. ALS-29626 |
| Subdiv Extract: When Keep Originals is checked, the original subdiv is kept and the subdiv is extracted as expected. ALS-29318 |
| Patch Precision tool: When picking objects for Patch Precision, selecting the magnet icon in the Pick Chooser now picks the object and allows you to increase or decrease the number of descriptive isoparametric curves by dragging. ALS-29848, ALS-29874 |
| Fixed an issue that caused the promptline to change from 2 Lines or 3 Lines to 1 Line when opening the Surface Fillet. ALS-29973 |
| Layer symmetry: Fixed an issue that caused subdivision objects and symmetrical halves to remain visible after toggling visibility off (Display > Toggle Visibility). ALS-30314 |
| Fixed issues associated with chordal fillets not producing expected results in certain situations. The guide rail creation has now been improved and produces better CV layouts. ALS-23842 |
| Alias now displays a promptline message indicating stitching success or failure, along with the reason for any failure. ALS-29470 |
| Fixed an issue where undoing a stitch operation caused objects from the wrong layer to be stitched. ALS-30801 |
| Align tool: Fixed the issue where Edge Align failed due to angle tolerance between trim edges being too restrictive. ALS-29556 |
| Fixed an issue where Curve Curvature did not show the correct results in some situations. ALS-30451 |
| To prevent crashing while using the Rebuild Curve tool, changing the degree and spans from the Control Panel is now disabled when the tool is active. ALS-29846 |
| Fit Curve tool: No longer produces undesirable results on trimmed surface boundaries compared to CoS. ALS-27478 |
| Fixed an issue with the Align tool that caused Alias to crash when activating Tangent Balance with G3 Continuity. ALS-30771 |
| Trimming of subdivision objects now succeeds when using the Trim Surface tool with 3D Trimming and Projection turned on, resolving previous failures despite green checks. In some cases, CVs for existing files may need to be updated for successful trimming. ALS-28851, ALS-29783, ALS-17115 |
| Bridge Fillet tool: Multiple surfaces are now correctly created when required, resolving the issue of only producing a single surface regardless of options chosen, which occurred in certain cases. ALS-30282 |
| Fixed a crash related to importing files that have deleted references. ALS-30596 |
| Surface Fillet tool: Radius, Chordal Length, and Form Factor now only auto-update when dragging the slider and releasing the LMB. ALS-29675 |
| Fixed an issue with the Profile Tool where surface connections in corners required additional tweaking due to kinks. ALS-29909 |
| Duplicate Mirror: Trims on subdivision source objects are now duplicated as expected. ALS-10333 |
| Fixed an issued that caused curvature combs to disappear after selecting Toggle Construction Plane. ALS-29407 |
| The Dynamic Measurement tool now provides accurate measurements in all views as expected. ALS-29324 |
| Surface Fillet tool: When using Edge Align, the positions of the two innermost CVs of a G2 Curvature Arc fillet are now aligned to the related side, even if they are not involved in the G2 connection. ALS-30555 |
| Visualization |
|---|
| Transparency display ordering issues no longer occur if the VRED Renderer is turned on in Alias. ALS-16542 |
| Fixed an issue that caused shader assignments to become inconsistent when switching between stages. ALS-29330 |
| Custom Horizontal/Vertical Diagnostic Shader color values now persist when you add the shader to a custom shelf. ALS-29319, ALS-29185 |
| You can now reorder variants in the Variant Lister by MMB dragging. ALS-29216. |
| You can now turn on the texture manipulator from the Shader Lister, allowing you to quickly make texture adjustments. Select a shader with an assigned texture, then click the icon that appears in the top left corner of the preview. ALS-26247 |
| Shading now displays as expected for View > View Flip and View Both. ALS-29437 |
| Texture Editor: Save and Load options have been added, which allow you to save and reuse textures. ALS-26729 |
| Shader Editor: When deleting a shader, pressing the Spacebar now confirms the deletion as expected. ALS-29228 |
| Animation |
|---|
| Animation: Copying and pasting keyframes with Parameters set to All in the Set Keyframe Options no longer causes unselected cameras and windows to be included in the pasted keyframes. ALS-30310 |
| Data Transfer |
|---|
| Fixed an issue where corrupt file transfers caused subsequent data corruption during copy and paste operations. ALS-29843 |
| CATIA V5 Import: Fixed an issue that caused unwanted entities from the CATIA file to appear in Alias in certain situations. ALS-29414 |
| Dynamo |
|---|
| Improved the performance in Alias when tumbling and zooming in a file with hidden Dynamo geometry. ALS-30706 |
| API |
|---|
| The AlUniverse::retrieveOptions(); method has been updated to fix a regression with memory allocation. Any plugins using this method will need to be recompiled. ALS-29441, ALS-29415 |
Known Issues
Deleting, moving, or renaming a material library currently in use by Alias can destabilize or crash the application. For example, if materials from a library are used for Replace Shaders by Name and the library is altered, Alias may become unstable when rerunning Replace Shaders by Name.
NX Export using the New Data Translator may fail to export surfaces with associated history. This can results in an error message: "Translation of (file name) failed due to an unknown error (-1073741819)."
Alias is not able to load, and in some cases, not able to locate, plug-in files using the location specified by the Plugin Search Path preference.
Workarounds:
- Use the ALIAS_PLUGIN_LIST_FILE environment variable to specify the location of the plugin or to a file that specifies a list of plug-ins.
- Install the plug-in in the
ODS/OpenAlias/pluginsfolder in the Alias installation directory, which is a default plug-in folder that Alias searches for available plug-ins. - Add the plug-in location to the
AliasPluginsListfile located in your inUserPrefsxxxxdirectory. For example:C:\Users\username\AppData\Roaming\Autodesk\Alias\UserPrefs2026.0.
Copyright© 2025 Autodesk, Inc. All rights reserved.