I have been using "Poderosa Special version 5.7.5 (Nov 20, 2010)" for a long time but it does not support the private key format I now need while the version here on Sourceforge (4.4.0) does. However, there are many features from the special version missing here. One is the bookmark menu. It is incredibly helpful to save a list of connections and their passwords.
Please consider implementing it here.