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# Release Notes for Ocula 4.0v21

# Release Date

April 2026

## Minimum System Requirements

• A version of Nuke 15.2 on:

• macOS Sequoia (15.x), or macOS Sonoma (14.x). Nuke 15.0 and later supports Apple's silicon hardware.

Article: For more information on Foundry products and supported macOS versions, see Foundry Knowledge Base article Q100592.

• Windows 10 (64-bit) or Windows 11 (64-bit)

• Linux Rocky 9.0 (64-bit)

Note: The currently supported version of VFX Reference Platform includes library versions that are only compatible with Rocky 9.0.

# New Features and Enhancements

There are no new features in this release.

# Bug Fixes

• ID 614677 - Ocula would crash when toggling off the GPU for O_DisparityGenerator whilst in Disparity channel on MacOS Tahoe.

# Known Issues and Workarounds

• ID 407149 - StereoReviewGizmo: Adding a FullPipeline toolset from the Ocula menu before adding stereo views to the script disables some controls in the Properties panel of the StereoReviewGizmo.
As a workaround, set up the stereo views in the Project Settings before adding the FullPipeline toolset.

• ID 153813 - Late 2013 Mac Pros only: When enabled in Nuke's Preferences, all Ocula nodes indicate that 2 GPUs are in use in their properties, when in fact, Ocula nodes only employ 1 GPU at a time.

• ID 141910 - Ocula's ReviewGizmos and Toolsets require standard left and right views to operate correctly.

• ID 140906 - O_Solver: Deleting or manipulating feature matches does not currently create an undo stack.

• ID 139604 - O_Solver: The Viewer doesn't update after enabling downstream nodes with postage stamps enabled.

• ID 138346 - O_Solver: The Preview Alignment overlay is not displayed until you mouse-over the Viewer.