Slicer 4.8.1 release and transition to Qt5 and VTK9

Development
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Hi Slicers,

Next week, I suggest we release Slicer 4.8.1 based of the current master.

Then, we will toggle the default version of Qt, VTK as well as the C++ version to Qt5, VTK9 and C++11.

Let us know what you think.

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JC,

I am so excited for these changes! I can’t wait for C++11 to be the default. I think that the added checks and extended capabilities of C++11 will make the overall code base much stronger in the long run.

Hans

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Hi Slicers,

If tomorrow dashboard is green and unless there is any objection, we will release Slicer 4.8.1 based on current master (*).

(*) current master: This means cherry-picking all commits since the release onto slicer/Slicer@master-48 branch

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VMTK extension packaging on Mac broke by the changes done right after releasing 4.8.0. It means that after 4.8.1 is merged, VMTK will not be available for Mac in 4.8.1. @jcfr Could you have a look and see if you can fix it? See details here: https://github.com/vmtk/SlicerExtension-VMTK/issues/11

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Most likely related to r26488, I will have a look asap.

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VMTK extension packaging

This is the last outstanding issue. As soon as this is addressed, most likely tomorrow, I will cut the release.

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Updates:

  • The VMTK issue should now be fixed. Changes were specific to the extension. See PR vmtk/vmtk#209

  • The slicer-4.8 maintenance branch is currently being updated and Slicer 4.8.1 will be tagged shortly.

all of that from above the Atlantic at 37001 feet (or 11280m)

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Packages for Slicer 4.8.1 are currently being generated.

Once this is complete, the regular nightly builds will start.

Notes:

  • At first, packages for Slicer 4.8.1 will not be available on http://download.slicer.org. They first have to be marked as released. Also the windows packages will have to be signed.

    • In the mean time, you will be able to download the packages directly from CDash clicking on the icon near each build.

    • The process will be completed in the coming days. Thanks for your patience

  • Expect some delay, since additional installer are being generated. Extensions build will take a little longer before being available.

  • Starting today, extensions for Slicer 4.8.0 will NOT be built anymore. Instead, extensions for Slicer 4.8.1 will be built daily.

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The process will be completed in the coming days. Thanks for your patience

Slicer 4.8.1 packages have been marked as released (see http://slicer.kitware.com/midas3/folder/4989) and should show up on http://download.slicer.org/ shortly.

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Are these items below what is still pending before the switch can be flipped?

https://www.slicer.org/wiki/Documentation/Labs/Qt5-and-VTK8#To_Do_List

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As we have a functional stable release, I think we can afford to have some limitations in nightly releases. I would vote for switching now.

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MacOS and Linux build will be broken. If you can wait few days, we can do
so during the project week.

Best,
Jc

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Ciao @jcfr, I am just super curious about the state of the transition to Qt5/VTK9 after the project week!