# 2026.05.26 Weekly Meeting

**URL:** <https://discourse.slicer.org/t/2026-05-26-weekly-meeting/47103>\
**Category:** Weekly meetings\
**Created:** [May 21, 2026, 2:09pm UTC](https://discourse.slicer.org/t/2026-05-26-weekly-meeting/47103 "2026-05-21T14:09:12Z")\
**Posts on this page:** 4\
**Page:** 1

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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:** [May 21, 2026, 2:09pm UTC](https://discourse.slicer.org/t/2026-05-26-weekly-meeting/47103/1 "2026-05-21T14:09:12Z")

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Title: 2026.05.26 Weekly Meeting

Next Tuesday, we will be having our next weekly hangout at **11:00 AM ET until 12:00 PM ET.**

Anyone is welcome to join at this link: [Launch Meeting - Zoom](https://etsmtl.zoom.us/j/96828430830?pwd=9EqBWHKc4fytzNThgha4ByM1hoQwPr.1)

* * *

> **Weekly Meeting**
>
> **Starts:** May 26, 2026, 11:00am (America/New\_York)\
> **Link:** <https://etsmtl.zoom.us/j/96828430830?pwd=9EqBWHKc4fytzNThgha4ByM1hoQwPr.1>

**Agenda:**

Please post to this thread to put a topic on the agenda! We will try to prioritize agenda items during the meeting.

* * *

Thanks  
Sam and Ebrahim

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<div class="post-metadata">

**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:** [May 25, 2026, 2:10pm UTC](https://discourse.slicer.org/t/2026-05-26-weekly-meeting/47103/2 "2026-05-25T14:10:20Z")

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bump: This meeting will be tomorrow

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<div class="post-metadata">

**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:** [May 25, 2026, 10:58pm UTC](https://discourse.slicer.org/t/2026-05-26-weekly-meeting/47103/3 "2026-05-25T22:58:40Z")

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Can’t attend but I wanted to remind about this issue on the github.

> <https://github.com/Slicer/Slicer/issues/9130>
>
> as reported on the forum: https://discourse.slicer.org/t/strange-folder-bug/4683…5/3
> 
> \### issue1: losing hierarchy:
> In the latest preview in Macos, data module is behaving strangely:
> 
> Load two models in a blank scene
> Create a NewFolder
> Put the models in the NewFolder
> Hit the visibility icon at the NewFolder and notice that those two models are now moved out of the NewFolder (they are at the same level, not nested in).
> 
> Subsequent ones (newfolders) do not show this behavior. They work correctly. This is vanilla slicer.
> 
> \### issue2: Missing opacity slider
> 
> 1. Create a segmentation (with couple items in it)
> 2. Convert to model reprsentation using the right click in Data module.
> 3. Right click the visibility (eye) icon for the Model folder and notice that opacity slider is not there. 
> 4. Toggle the folder visibility on/off and see that opacity slider comes back.

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<div class="post-metadata">

**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:** [May 26, 2026, 5:15pm UTC](https://discourse.slicer.org/t/2026-05-26-weekly-meeting/47103/4 "2026-05-26T17:15:35Z")

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Meeting notes:

## Slicer 5.12 (Everyone)

Slicer 5.12 release issue now exists: [Release Slicer v5.12 · Issue #9180 · Slicer/Slicer · GitHub](https://github.com/Slicer/Slicer/issues/9180)

It is a good time to release 5.12 soon because we have a fairly clean dashboard and we are about tackle two problems that will create a broken nightly for a while: transtion to Qt6 and support mac arm64.

## Imported symbols in python console (Steve, Ebrahim)

We should restore the legacy behavior in terms of things in `slicer.util` that were previously automatically imported in the slicer python console. Import everything, or almost everything, from slicer.util explicitly [here](https://github.com/Slicer/Slicer/blob/208adb862bc329e6370ae400fef1b18e9ac54cbd/Base/Python/slicerqt.py#L14-L20), or do a wildcard import but explicitly control ` __all__ ` for `slicer.util`.  
Opened issue: [Restore slicer.util imports in python console · Issue #9182 · Slicer/Slicer · GitHub](https://github.com/Slicer/Slicer/issues/9182)

## Support for qt.QThread in 3D Slicer python (Thibault)

We have started looking into the support of qt.QThread in 3D python.  
Currently running qt.QThreads would either result in running in the main thread or the application crashing.

As we need to add GIL locking and do proper non regression testing, threading support should be added comming Slicer 6.0

## To integrate SlicerLayerDM into Slicer core (Thibault)

The SlicerLayerDM extension has proven to be very useful to implement and integrate advanced Slicer widgets in both Python and C++.

We plan to integrate the SlicerLayerDM in the core of Slicer starting preview release Slicer 5.13+.