I just did a clean install of the newest version not long ago and it doesn't force an install of anything - there is a checkbox that the user can uncheck. It didn't install the toolbar on my system. Sadly, developers of freeware need to get money to continue their work and this is one of the ways they've been forced to do it. As long as there as the user has a choice I won't object too loudly.
What I find objectionable is the commercial security software, like Norton and Spysweeper, that are supposed to protect the user from adware toolbars and the like doing the same thing. Bottom line: always be observant when installing software these days as just about everything now comes with optional toolbars.