version 4 seems to be released at least, the download button on the website points to "last-exit-4.tar.bz2" and 3.0 is the latest in-tree version. Reproducible: Always Steps to Reproduce:
Thanks for the notice, I had seen the announcement and hadn't gotten around to it and it slipped my mind, I plan to bump it in a day or two, renaming the ebuild to last-exit-4.ebuild should work fine for you - I need to fix the dependencies though or jakub will hurt me
Added to portage, enjoy