Comment 1 for bug 1846788

I can confirm, that this issue now causes errors instead of warnings and fails the notarization process:

    {
      "severity": "error",
      "code": null,
      "path": "thonny-xxl-3.2.6-macos-installer.pkg/ThonnyComponent.pkg Contents/Payload/Applications/Thonny.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/lxml/etree.cpython-37m-darwin.so",
      "message": "The binary uses an SDK older than the 10.9 SDK.",
      "docUrl": null,
      "architecture": "x86_64"
    },
    {
      "severity": "error",
      "code": null,
      "path": "thonny-xxl-3.2.6-macos-installer.pkg/ThonnyComponent.pkg Contents/Payload/Applications/Thonny.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/lxml/objectify.cpython-37m-darwin.so",
      "message": "The binary uses an SDK older than the 10.9 SDK.",
      "docUrl": null,
      "architecture": "x86_64"
    }