https://securitydocs.business.xerox.com/wp-content/uploads/2016/04/cert_Security_Mini-_Bulletin_XRX16M_for_Color5XX_v1-0-1.pdf

Xerox Security Mini Bulletin XRX16M_V1.0 (PDF 196K)

This software contains fix for Poodle vulnerability and adds support for SHA-256 hash algorithm and 2048 bit digital certificates on Color 550/560/570.