ebrahim
(Ebrahim Ebrahim)
June 23, 2026, 9:40pm
1
We’ve temporarily disabled regular Preview and Stable builds of Slicer (and associated extensions) while we prepare the Slicer 5.12 Stable release.
The Slicer repository will be tagged, and the release process will start shortly afterward.
You can track progress in the pinned release issue: Release Slicer v5.12 · Issue #9180 · Slicer/Slicer · GitHub
Thanks for your patience
ebrahim
(Ebrahim Ebrahim)
June 24, 2026, 5:38pm
2
Preview builds are now re-enabled.
We are continuing to work on the Slicer 5.12 stable release
ebrahim
(Ebrahim Ebrahim)
June 24, 2026, 9:03pm
3
Slicer 5.12 is now available!
In the coming days the community will be putting together a release announcement.
3D Slicer is a free, open source software for visualization, processing, segmentation, registration, and analysis of medical, biomedical, and other 3D images and meshes; and planning and navigating image-guided procedures.
So Slicer 5.11 stable release is skipped?
This does look a bit confusing to me:
pieper
(Steve Pieper (Isomics, Inc.))
June 25, 2026, 11:32am
5
That should resolve later today or tomorrow. The Preview will be renumbered to 5.13.0. 5.12 will be the last Qt5 based Slicer, and 5.13 will become the active refactoring (expect some breaking changes in the API) for a Slicer 6.0 release based on Qt6.
Sam_Horvath
(Sam Horvath (Kitware))
June 25, 2026, 1:59pm
6
The Previews are odd-numbered, the stables are even numbered.
Sam_Horvath
(Sam Horvath (Kitware))
June 25, 2026, 2:03pm
7
There also seems to be an issue with the download site updating to 5.13, working on this