The ChangeLogs I have seen stop at 0.4.3 or 0.4.2. Does anybody know if there is a changelog that includes the most recent versions?
You can find the most recent changelog in https://github.com/joyent/node/blob/v0.4.5/ChangeLog (I don't know why it is not updated in the master branch). The changelogs are also posted in the blog and the mailing list.