Theo de Raadt announced the release of OpenBSD 4.2 today (November 1) on misc@. See my article on Undeadly for more details.
This release offers many new features including an install42.iso that includes all installation sets. This is a great convenience that people have been clamoring for, but I'm concerned it will affect CD sales (which drive the project). Please, please be sure to donate (pick the "SECURE Web Ordering Form") if you ftp installation sets or the install42.iso file.
This release also marks the first release in which I'm a developer (merdely@)! Honest. My name is at the bottom of the announcement in the list of developers.