Ethereum Classic is preparing for the Thanos hard fork to hold miners with 4GB of video cards 🍴
The update should take place on block 11,700,000, which will be mined between November 28 and 29. It will reduce the epoch parameter for the Ethash mining algorithm used in Ethereum Classic. Ethash uses a set of pre-calculated data-a directed acyclic graph (DAG). The size of this data set increases by about 1 GB every 18 months, and will soon reach 4 GB. This may cause problems with some models of video cards and ASIC miners, they will no longer be able to mine ETC.
The Dag mechanism increases the stability of Ethash to ASIC miners, and the constant growth of DAG prevents large investments in highly specialized equipment. The goal of the Thanos hard fork is to reduce the size of the DAG by half, which will allow devices with 4 GB of memory to work for another three years.