On January 22, 1998, Netscape Communications Corporation announced that all future versions of its software would be available free of charge and developed by an open source community, Mozilla. Netscape Communicator 5.0 was announced (codenamed "Gromit"). However, its release was greatly delayed, and meanwhile, there were newer versions of Internet Explorer, starting with version 4. These had more features than the old Netscape version, including better support of HTML 4, CSS, DOM, and ECMAScript; eventually, the more advanced Internet Explorer 5.0 became the market leader.