I'm trying to download the newest version of QGIS to my new Mac 12.2 (32 bit) system.

I get qgis-macos-pr.dmg and a TA+h+3hv.dmg.part no matter how long I wait; of course the .dmg failes with "Couldn't read file or malformed UDIF image". I tried both the newest and stable links, and get the same with both. What am I missing?

  • 1
    You have the official install on QGIS.org, you can install QGIS with brew too : formulae.brew.sh/cask/qgis#default Feb 2, 2022 at 9:01
  • J.Monticolo, does a brew install end up with the same result as the official install? (See below for OSX 12.2 rejection of the official install.)
    – johnsankey
    Feb 3, 2022 at 15:35
  • I don't know and can't test it. Feb 3, 2022 at 16:08

1 Answer 1


This is the current stable release of QGIS for Mac OS.

  • Today the download is apparently complete. But, I get the message that "it can't be checked for malicious software - update needed". And, it disabled QGIS 1.8 because "The required "osgeo [python-gdal]" module is missing". So now I don't have even my old QGIS working 👎
    – johnsankey
    Feb 2, 2022 at 23:09
  • Backups work :) My QGIS 1.8 is working again.
    – johnsankey
    Feb 3, 2022 at 15:33
  • I've tried to report this using the bug report mechanisms on the QGIS site, but all of them use Github and that site refuses to allow me to create an account: every password I've tried is refused with "this password is compromised". So here is the only place I can report it: "“QGIS.app” can’t be opened because Apple cannot check it for malicious software. This software needs to be updated. Contact the developer for more information."
    – johnsankey
    Feb 4, 2022 at 0:46
  • 1
    Have you tried to "right-click" (or ctrl-click on Mac) and select "Open" ? Feb 4, 2022 at 14:09
  • Thank you, J. Monticoco, ctrl-click works. It gives me an open option then opens it, and a regular open works from then on. Whew!
    – johnsankey
    Feb 4, 2022 at 16:06

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