# Extensions for stable are not building for macos

**URL:** <https://discourse.slicer.org/t/extensions-for-stable-are-not-building-for-macos/45381>\
**Category:** Support\
**Created:** [December 5, 2025, 9:57pm UTC](https://discourse.slicer.org/t/extensions-for-stable-are-not-building-for-macos/45381 "2025-12-05T21:57:18Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [December 5, 2025, 9:57pm UTC](https://discourse.slicer.org/t/extensions-for-stable-are-not-building-for-macos/45381/1 "2025-12-05T21:57:18Z")

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No Mac extensions. Windows and Linux seems fine:

> **[SlicerStable](https://slicer.cdash.org/index.php?project=SlicerStable)**
>
> CDash is an open source, web-based software testing server. CDash aggregates, analyzes, and displays the
> results of software testing processes submitted from clients located around the world. CDash is a part of a
> ...

@Sam_Horvath @ebrahim

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**Author:** ![ebrahim](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ebrahim/32/13403_2.png) [@ebrahim](https://discourse.slicer.org/u/ebrahim)\
**Post date:** [December 6, 2025, 4:47am UTC](https://discourse.slicer.org/t/extensions-for-stable-are-not-building-for-macos/45381/2 "2025-12-06T04:47:00Z")

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I see mac extension builds showing up now, maybe it was just delayed? (I don’t have access to computron atm.) There are a lot of stragglers showing up on Dec 6, and still rolling in as I write this

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [December 6, 2025, 4:51am UTC](https://discourse.slicer.org/t/extensions-for-stable-are-not-building-for-macos/45381/3 "2025-12-06T04:51:42Z")

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OK, looks like MacOS builds didn’t even start until couple hours ago. At this point I am not sure if this is soon to be yesterday’s build, or actually the build for tomorrow (Saturday). Looks like similar issue to this: [Slicer build factory speed](https://discourse.slicer.org/t/slicer-build-factory-speed/45358)