Some other changes include the SSL support for POP3 E-mails (like Gmail), less memory and sytem resource usage, various user interface improvements, improved custom contact names feature, custom emoticon sounds and more..
I hope you will all feel the same when this version will be finally released in March. It took me two months of work to create the Custom Sounds which is a lot more than the time I spent on anything else in Messenger Plus! since its creation. This feature has been made to be fun, just and only fun, no geeky feature attached.More info at here