The official 1.1 update for CS:CZ has been released, and all other Steam games have been updated. Here's a list of what's included.
COUNTER-STRIKE: CONDITION ZERO
New high-definition player models New high-definition weapon models New high-definition sound effects New Buy Package system Custom Mission Pack support Updated de_stadium_cz Updated de_dust_cz Added solid radar option Various other improvements
New high-definition player models New high-definition weapon models New high-definition sound effects New Buy Package system Custom Mission Pack support Updated de_stadium_cz Updated de_dust_cz Added solid radar option Various other improvements