CRT 6.1 will be the final version.
In 1995 when CRT was first released, Telnet was a popular choice for remote shell access.
In 1998, Vandyke Software introduced SecureCRT® to address increasing concern over Telnet's inherent lack of security. Supporting SSH1 and SSH2 as well as Telnet, Serial, RLogin, and TAPI, SecureCRT is a multi-protocol application for your remote access and emulation needs.
We have made the decision to cease active development of CRT and concentrate on enhancing SecureCRT. Many organizations are turning off Telnet. SecureCRT can help with this transition, because Telnet can be used until it has been replaced by SSH1 or SSH2.
We will continue to make CRT installers available for download for existing customers, but will no longer sell new licenses for the application, effective September 1, 2008. We plan to continue offering support for CRT customers through September 30, 2009.
SecureCRT System Requirements