Are there publication notices for new entries in the Stanford Encyclopedia of Philosophy?
I'm not aware that there are. But if the public is not aware that something made available to it is available, is that piece really published?
Once and a while, though, I learn of an entry through insider information, as with Mary Louise Gill's very recent, and excellent, article on "Method and Metaphysics in Plato's Sophist and Statesman" . . .
. . . published October 6, 2005.