XEmacs overlay
For some time now there have been an emacs and xemacs overlay available through layman. Both of them pointed to the same overlay of the Emacs project. While this worked fine and also seemed easy for the Emacs project people from a maintenance perspective, we’ve now decided to split up things more clearly to avoid confusion. The emacs overlay now contains all experimental things related to GNU Emacs, and the xemacs overlay contains everything related to XEmacs.
For XEmacs users nothing changes if you were already using the xemacs overlay, but if you used the emacs overlay up to now then you will need to add or change to the xemacs overlay to continue using the latest xemacs ebuilds and eclasses, most prominently the xemacs 21.5 ebuild.