I read in the release notes that the only change in 8.0.4.0 was to the Windows versions.
Since all Linux versions stayed at 8.0.3.0, I assumed there was nothing that affected Linux.
Probably be nice just to bump the version number for Linux just to keep things even.
8.0 Stable Release (8.0.5.0)
Re: 8.0 Stable Release (8.0.4.0)
MX-15_x64: desktop w/4.7.0-4.1-liquorix-amd64;
MX-15_386: netbooks w/4.4-7.dmz.1-liquorix-686-pae.
MX-15_386: netbooks w/4.4-7.dmz.1-liquorix-686-pae.