# Slicer 5.12: Summary, Highlights, and Changelog

**URL:** https://discourse.slicer.org/t/slicer-5-12-summary-highlights-and-changelog/47540
**Category:** Release Notes
**Created:** [July 10, 2026, 12:01pm UTC](https://discourse.slicer.org/t/slicer-5-12-summary-highlights-and-changelog/47540 "2026-07-10T12:01:43Z")
**Posts on this page:** 1
**Showing post:** 6

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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: [July 10, 2026, 8:10pm UTC](https://discourse.slicer.org/t/slicer-5-12-summary-highlights-and-changelog/47540/6 "2026-07-10T20:10:00Z")

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Isn’t the dynamic library issue on MacOS supposed to be solved with the patch release? I am still seeing the same error with 5.12.1:

[Qt] Error(s):

[Qt] Cannot load library /Applications/Slicer.app/Contents/Extensions-34624/MarkupsToModel/lib/Slicer-5.12/qt-loadable-modules/libqSlicerMarkupsToModelModule.dylib: (dlopen(/Applications/Slicer.app/Contents/Extensions-34624/MarkupsToModel/lib/Slicer-5.12/qt-loadable-modules/libqSlicerMarkupsToModelModule.dylib, 0x0085): Library not loaded: libopenjp2.7.dylib

[Qt] Referenced from: \<8AB6103B-BD3F-3B06-B823-E5A294A0BE71\> /Applications/Slicer.app/Contents/Extensions-34624/MarkupsToModel/lib/Slicer-5.12/libdcmjp2kcs.20.dylib

[Qt] Reason: tried: ‘libopenjp2.7.dylib’ (relative path not allowed in hardened program), ‘/System/Volumes/Preboot/Cryptexes/OSlibopenjp2.7.dylib’ (no such file), ‘libopenjp2.7.dylib’ (relative path not allowed in hardened program))

[Qt] Error(s):

[Qt] Cannot load library /Applications/Slicer.app/Contents/Extensions-34624/SurfaceMarkup/lib/Slicer-5.12/qt-loadable-modules/libqSlicerGridSurfaceMarkupsModule.dylib: (dlopen(/Applications/Slicer.app/Contents/Extensions-34624/SurfaceMarkup/lib/Slicer-5.12/qt-loadable-modules/libqSlicerGridSurfaceMarkupsModule.dylib, 0x0085): Library not loaded: libopenjp2.7.dylib

[Qt] Referenced from: \<8AB6103B-BD3F-3B06-B823-E5A294A0BE71\> /Applications/Slicer.app/Contents/Extensions-34624/SurfaceMarkup/lib/Slicer-5.12/libdcmjp2kcs.20.dylib

[Qt] Reason: tried: ‘libopenjp2.7.dylib’ (relative path not allowed in hardened program), ‘/System/Volumes/Preboot/Cryptexes/OSlibopenjp2.7.dylib’ (no such file), ‘libopenjp2.7.dylib’ (relative path not allowed in hardened program))

dlopen(/Applications/Slicer.app/Contents/Extensions-34624/Sandbox/lib/Slicer-5.12/qt-loadable-modules/vtkSlicerCombineModelsModuleLogicPython.so, 0x0002): Library not loaded: libopenjp2.7.dylib

Referenced from: \<8AB6103B-BD3F-3B06-B823-E5A294A0BE71\> /Applications/Slicer.app/Contents/Extensions-34624/Sandbox/lib/Slicer-5.12/libdcmjp2kcs.20.dylib

Reason: tried: ‘libopenjp2.7.dylib’ (relative path not allowed in hardened program), ‘/System/Volumes/Preboot/Cryptexes/OSlibopenjp2.7.dylib’ (no such file), ‘libopenjp2.7.dylib’ (relative path not allowed in hardened program)

[Qt] libpng warning: iCCP: profile ‘ICC Profile’: ‘CMYK’: invalid ICC profile color space

[Qt] libpng warning: iCCP: known incorrect sRGB profile

dlopen(/Applications/Slicer.app/Contents/Extensions-34624/SegmentEditorExtraEffects/lib/Slicer-5.12/qt-loadable-modules/vtkSlicerSegmentEditorFastMarchingModuleLogicPython.so, 0x0002): Library not loaded: libopenjp2.7.dylib

Referenced from: \<8AB6103B-BD3F-3B06-B823-E5A294A0BE71\> /Applications/Slicer.app/Contents/Extensions-34624/SegmentEditorExtraEffects/lib/Slicer-5.12/libdcmjp2kcs.20.dylib

Reason: tried: ‘libopenjp2.7.dylib’ (relative path not allowed in hardened program), ‘/System/Volumes/Preboot/Cryptexes/OSlibopenjp2.7.dylib’ (no such file), ‘libopenjp2.7.dylib’ (relative path not allowed in hardened program)

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