A new Steam Client update has been released and will be automatically downloaded. The specific changes are listed below.

General

• Introducing Steam Family Options , a new way for parents and families to establish access to the Steam features and content they choose.
  
• Added global setting to allow downloads during gameplay, and change the per-app settings to be global/allow/deny.
  
• Added UI for Family Sharing to specify which accounts may play games on authorized computers
  
• Add disk-activity indicator to downloads page, will light up if updates are slowed because Steam is waiting for the local disk to write data
  
• Simplify application name displayed for Steam executable in Windows firewall and crash dialogs
  
• Fixed a crash that could occur when quitting the Steam Client
  
• Fixed canceled recurring subscriptions to remain valid until expired
  
• Fixed current download rate display when downloads are paused/stopped
  
• Fixed regression with downloading optional DLC while the app is running
  
• Fixed crash in game backup code if a user didn't own a mounted depot
  
• Fixed estimated download-time staying blank in the Downloads page
  
• Fixes for Asian text input in the Steam overlay affecting the input state of the game
  

Big Picture

• Add control of per-game update settings under "Links and More" in the Library
  
• Fixed download progress indicator to correctly start at 0%, not 100%
  
• Fixed smooth scrolling in some panels to not jitter backwards before continuing to correct scroll offset
  
• Fixed Steam Controller bindings left browse column to scroll correctly as focus moves off screen
  
• Most notification toasts should now respond to pressing the guide button or clicking on the notification
  
• Modal dialogs should now close when clicking outside of the dialog
  
• Fix estimated download time remaining string getting cut off