/technology/ en /technology/news/list/2020/08/21/mac-update-farewell-high-sierra The Mac High Sierra operating system will soon no longer be supported, which means that if you are on this system, you will need to upgrade to Catalina (free) or your access to the ×îÐÂÌÇÐÄVlog's network will be restricted or disabled, when using that operating system. Also, Microsoft Office will cease to function on it from October 2020. August 21 2020 Eva O'Driscoll /technology/news/list/2020/08/21/mac-update-farewell-high-sierra