This version comes with Blowfish CBC support. It is entirely compatible with "Blowfish Encryption Add-On for mIRC" and others. There were a few minor bugs also fixed. Please test it and report bugs if found.
To use CBC mode on channels, you must prefix the key with cbc: when running /setkey command. For example, to set the key as morte666 in CBC mode run:
/setkey cbc:morte666
Also the private chat Diffie–Hellman key exchange has changed to use CBC by default. So if you need to talk with someone who uses an older FiSH version, or another plugin that doesn't support CBC, run /keyx with the -ecb parameter to force the older ECB mode.
/keyx -ecb
Enjoy!