# Downloading extensions for older releases

**URL:** <https://discourse.slicer.org/t/downloading-extensions-for-older-releases/19256>\
**Category:** Support\
**Created:** [August 30, 2021, 12:58pm UTC](https://discourse.slicer.org/t/downloading-extensions-for-older-releases/19256 "2021-08-30T12:58:32Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Post date:** [August 30, 2021, 1:46pm UTC](https://discourse.slicer.org/t/downloading-extensions-for-older-releases/19256/2 "2021-08-30T13:46:07Z")

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Does this work only for the already released “Stable” versions and any Slicer “Preview” releases prior to the transition to the updated Extension Manager infrastructure? Date?

I downloaded Slicer 2021-08-24 revision [30133](https://slicer-packages.kitware.com/#collection/5f4474d0e1d8c75dfc70547e/folder/6125c4e7342a877cb3b8be76) from the Applications/packages/Slicer/draft/30133 directory and then download the [SlicerDebuggingTools](https://slicer-packages.kitware.com/#collection/5f4474d0e1d8c75dfc70547e/folder/6125cd7c342a877cb3b8bede) extension in the Applications/packages/Slicer/draft/30133/extensions directory. I then installed Slicer and then followed the instructions to manually install the extension. Upon doing so I get the same results as I posted about at [Unable to manually install extension to manual Slicer build](https://discourse.slicer.org/t/unable-to-manually-install-extension-to-manual-slicer-build/19359).

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