A small update was released tonight for Dota 2. There are only a few changes listed here, so don't get too excited.

Changelog for Dota 2 for July 17, 2015

- Updated the visuals for the Templar Assassin Immortal.
- Moved the Templar Assassin Immortal to the new Weapon slot (equipped items have been unequipped).
- Fixed Invoker item Guard of Sinister Lightning breaking his facial animation.
- Fixed a crash relating to items on the courier.
- Greevil eggs and essences will expire on September 15th. Any hatched Greevils will not be affected.

That's pretty much it! Have a fun, MOBA filled weekend. I'm just guessing you like MOBA games since you read this news post.