The Twitch app now has addon management built in, so you can browse for new addons, install them, and keep them up to date with a fresh interface and streamlined support from Twitch. Experience new adventures with some of the most popular modpacks, such as the massive FTB pack, the challenging Agrarian Skies or Direwolf20's customized pack, all installed with a simple click!
Java: 32/64 Bit version of Java 7 or Java 8
RAM: 1-2GB (Recommended: 4GB or more)
HDD: 1-2GB of HDD Space (For Mods & Worlds)
Recommended: Clean installation folder to avoid problems
If launcher freezes while loading forge it means launcher requires more RAM. Follow this tutorial to allocate more ram:
This is currently unknown why it happens but it can easily be fixed.