Updates to the Steam Client have been released on October 4th. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Steam Client

• Fixed serverbrowser filters not correctly saving
  
• Fixed storefront reloading multiple times on launch
  
• Refresh the storefront on purchase, so the store page switches to the "launch" button
  
• Fixed game overlay sometimes rendering transparent characters
  
• Fixed incorrect layout of group chats
  
• Fixed content server selection for clients in some locations