Hello everyone,

Dual quality items can now be priced and buy orders can now be made specifically for them. Please note that this is not supported by Automatic yet, this will be added sometime this year (it's not a very high priority at the moment.)

An example of a dual quality item is the Strange Vintage Stockbroker's Scarf: http://backpack.tf/stats/Strange-Vintage/Stockbroker%27s%20Scarf/Tradable/Craftable/0

Strange is the only possible dual quality (you might think Collector's chemistry sets are too, but that's just how we display the item, it isn't in actual fact). Specifying any other quality won't work.

We've recently released the Classifieds search API[backpack.tf]. This is a new style API. Interested developers can read a draft design doc here[backpack.tf]. Today comes a new API: the market skin images API[backpack.tf]. This is a Premium API, meaning it's only available to users who are Premium or have donated at least $35. It's mainly useful for other developers who don't want to repeat our work in collecting these images.

A Terms of Use has also been added, it may be viewed here[backpack.tf]. Using our APIs means you are obliged to follow them. It's nothing scary - just some words that will hopefully discourage future abuse.

All IGetxxx APIs will become obsolete at some point; consider them deprecated right now. Many do not have replacements (right now only IGetUserListings has effectively been replaced), and thus will not be removed anytime soon. Expect all these APIs to stay available for at least half a year.

As always, a more complete changelog is provided for the changes since the last announcement I've posted. Not many user-facing changes have occurred this time, as I've been very busy.

• Added individual listing hide/unhide buttons. Listings that are hidden won't be removed for 30 days. Shown listings will now be removed after 5 days of no bumps. System-hidden (think buy orders hidden because you lacked currency in your inventory) listings are now shown as well, and moderators may now hide listings too.
  
• Added a button to hide/unhide/delete all of your listings on your profile[backpack.tf].
  
• Added /my (/my/profile, /my/listings, /my/inventory)
  
• Added Classifieds search API v1.
  
• Added market skin images API v1.
  
• Updated API docs to be more usable.
  
• Some bugfixes for the Classifieds.
  
• If a skin is a killstreak weapon, the base (non-ks) price is used instead.
  
• If an item is on cooldown (tradable after), it will now use the SCM price if possible (backpack.tf Community pricing is still preferred, but before the SCM price would not be used if the item was non-tradable in any sense).
  
• Fixed Killstreak kit/fabricator/strangifier stats pages not showing Classifieds listings.
  
• Added Help & Support and My API Key links to the user dropdown.
  
• Fixed unlinking Pushbullet not working.
  
• Fixed system-hidden buy orders being wacky sometimes.
  
• Fixed Killstreak tier: none search filter
  
• Added listing folding to stats pages
  
• Performance optimizations.