previously reported, Team Fortress 2's Pyro class will receive its fiery updates this Thursday, 6/19. Upgrades include achievements and the Axtinguisher, a weapon that inflicts extra damage to opponents doused in flames, but only inflicts half its normal damage otherwise.
A new character biography video, Meet the Sniper, will be released later this week.
Finally, Valve will also offer Team Fortress 2 for free this weekend. The free play period, which runs from this Friday through Sunday evening, provides future purchase incentive for those who haven't yet experienced Valve's class- and team-based shooter.