The beta for StarCraft II: Legacy of the Void began on March 31, 2015. It started as a closed beta. Beta keys are sent to users based on their system specs, recent StarCraft II activity, and luck. Beta entry giveaways will be provided through fansites and promotions later on in the beta. Anyone who bought a ticket to BlizzCon 2014 will be granted automatic access. Not all units will be present in the beta, and some features/improvements will not feature. The beta will run longer than most periods conducted by Blizzard Entertainment. The beta undergoes frequent changes in patches.