It has been six year since Ettercap developers released the last update. But in these days 11-12-04 a new version of Ettercap (0.7.4 – Lazarus) became available. This version fixed a lot of Buffer Overflows bugs and made Ettercap compatible with mac OS X Lion and 64bit architectures.
I think Ettercap developer team is not anymore the same of six year ago, but I totally encourage these new guys to bring it to a new life implementing new features such as HTTPS stripping, WPA 3-handshake sniffing, etc. Keep up the good work guys.