Oldest version that can log in (has not reached end of life): 8.0 (as of September 30, 2009) Version Oldest version for which customer care support is available: 8.0 (as of April 2, 2007) See one of several sites listed in external links to find other, older versions of the product. There are many versions between those listed here and prior to last version listed here. 3.3 Yahoo Web Messenger and Yahoo! Mail integration.