Dota 2 Update: Techies and Other Stuff Coming Next Week
Just when you thought it was safe to walk, well, anywhere. Techies are finally coming to Dota 2, along with a host of new features and Compendium stretch goals, including the new All Random Deathmatch mode and the All-Hero Challenge. Check out the Techies Update page and learn more about everything you’ll be seeing, doing, and fighting when the update goes live next week!
Techies Announcer Pack
Here is a Techies Guide for newbies. Check it out
Dota 2 Techies Guide: "Okay, let's blow something up!"
Source: Dota 2 Blog