https://www.tntware.com/tntconnect/help/en/pages/whatsnew-4-0.aspxTntConnect 4.0 introduces several new features and improvements: • Added support for macos Catalina , Linux and Chrome OS . • Dropbox Sync has been significantly improved to help teams and couples work better over the Internet with TntConnectenCommunityServer 2008.5 SP2 (Debug Build: 40407.4157)