Houdini Main Changelogs
| 21.0.680 | Added support for 3ds Max 2027. |
Wed. April 8, 2026 | |
| 20.0.1400 | In the HDK, removed uses of the deprecated std::shared_ptr::unique() method in favour of use_count() instead. |
Wed. April 8, 2026 | |
| 20.5.928 | In the HDK, removed uses of the deprecated std::shared_ptr::unique() method in favour of use_count() instead. |
Wed. April 8, 2026 | |
| 20.0.1400 | On Windows, added new hcustom --output_compiler_range option to output the range of compiler versions allowed for compiling HDK plugins. |
Wed. April 8, 2026 | |
| 20.5.928 | On Windows, added new hcustom --output_compiler_range option to output the range of compiler versions allowed for compiling HDK plugins. |
Wed. April 8, 2026 | |
| 20.0.1400 | In the HDK, removed uses of the deprecated std::shared_ptr::unique() method in favour of use_count() instead. |
Wed. April 8, 2026 | |
| 20.5.928 | In the HDK, removed uses of the deprecated std::shared_ptr::unique() method in favour of use_count() instead. |
Wed. April 8, 2026 | |
| 21.0.680 | In the HDK, removed uses of the deprecated std::shared_ptr::unique() method in favour of use_count() instead. |
Wed. April 8, 2026 | |
| 21.0.679 | Attempt to fix startup crash when using Houdini with Prisms Pipeline along with the Space Mouse. |
Tue. April 7, 2026 | |
| 21.0.679 | Fixed an issue with hkey where the login dialog for the users sidefx account and the license server login looked identical resulting in confusion for users. |
Tue. April 7, 2026 | |
| 21.0.679 | Fixed a compilation error when using some versions of XCode. |
Tue. April 7, 2026 | |
| 21.0.679 | Backport r533598 Layout LOP: Fixed a bug where prototypes in the stage would not load if the hip file was re-opened. This was because the string parm that is used to load the assets wfrom scratch was not being updated when the prototypes changed. |
Tue. April 7, 2026 | |
| 21.0.679 | Fixed an issue in the animation editor's box handle and retime tool, where keys could collapse to a bad value if there are multiple channels of the same name and the paste mode is "using channel names". |
Tue. April 7, 2026 | |
| 21.0.678 | Disabled re-import of HDAs during PCG generation as this may cause Unreal to crash. |
Mon. April 6, 2026 | |
| 21.0.678 | Fixed issue with the Preview Material COP losing its displacement if the node is renamed. |
Mon. April 6, 2026 | |
| 21.0.678 | Fixed a bug with python model haio where it was using the wrong alias of SSLProtocol. |
Mon. April 6, 2026 | |
| 21.0.678 | Internal update in preparation for next release. |
Mon. April 6, 2026 | |
| 21.0.678 | Removed the "Controls..." button from the Image ROP. |
Mon. April 6, 2026 | |
| 21.0.677 | Add functions to RV_Instance to request extra extensions and features to be enabled on the Vulkan Device created and used by the Vulkan viewport, which can be used by HDK plugins |
Sun. April 5, 2026 | |
| 21.0.677 | Backport for r533442 Stage Manager LOP: Fixed a bug where renaming a prim from an input node caused the prim Kind to be removed Bug: 155390 |
Sun. April 5, 2026 | |
| 21.0.675 | Backport for 533385 Layout LOP bugfix: Fixed an issue where changing a brush parm would bring back deleted geometry after the hitting Reset All Changes. Bug: 153912 |
Fri. April 3, 2026 | |
| 21.0.675 | Backport for r529827 Fixed bug in Layout LOP state where onInterrupt() was causing the handle to reset to origin. |
Fri. April 3, 2026 | |
| 21.0.675 | Backport for r529816 Layout LOP state update: Fixed bug where parent class's onExit() was not being called - causing failure to write overrides to delta geo |
Fri. April 3, 2026 | |
| 21.0.675 | Backport for r528485 Layout LOP bug fix: Fixed an issue where generating the preview of an added prototype while invoking a brush causes subsequently added prototypes to not register correctly. This caused a 'modulo by zero' error while indexing from the list of prototypes in the working set. |
Fri. April 3, 2026 | |
| 21.0.675 | Backport for r528403 Layout LOP: Fixed an issue where the 'Add to node' button on the asset catalog wasn't working Fixed an issue where deleting a node with prototypes was throwing a python error Other minor performance improvements |
Fri. April 3, 2026 |