CE8.0.0 is available now (has been available since late November 2015).
CE8.0.0 is supported on SX10, SX20, SX80, MX200 G2, MX300 G2, MX700, MX800, MX800D.
See CE8.0.0 - Collaboration Endpoint Software 8.0.0 is released | TelePresence | Cisco Support Community | 5886 | 12713881 for some information and warnings.
Edit: CE8.0.1 is also available now. The only real difference is to correct a bug when downgrading a SX20, so nothing new for an SX10.