Opera 69.0.3686.49・・・済 https://www.opera.com/ja/download?os=mac LibreOffice 6.4.5.2 (6.4.5002) (262 MB)・・・済 https://www.libreoffice.org/ https://www.libreoffice.org/download/release-notes/ Mac OS X x86_64 (10.10 or newer required)