An update to Team Fortress 2 has been released. The update will be applied automatically when you restart Team Fortress 2. The major changes include: Added a new promo item Unusual hats that are tradable can now be listed on the Steam Community Market Updated the network interpolation and update convars so they can be changed immediately after changing class and respawning. This allows the automatically executed [classname].cfg files to update the values. Fixed a bug that would cause some players who used an "Upgrade to Premium" item to be unable to thank another player after upgrading. Accounts that were affected by this bug have been retroactively fixed and will have the option to thank a helpful player automatically next time they log in. The ITFItems/GetPlayerItems and ITFItems/GetSchema WebAPI interfaces are now deprecated and will eventually be removed. External tools can call IEconItems/GetPlayerItems and IEconItems/GetSchema for current data.