December 9, 2019 Monero conducts hard fork to alter PoW algorithm and reduce GPU activity.

Monero has previously conducted a series of hard forks to reduce the influence of ASIC miners, and is now taking this further step against GPUs. The new hash algorithm, RandomX, utilizes a random mix of integer, floating-point, and conditional operations that eliminates the benefit of the parallel computation for which GPUs are designed. RandomX is thus aimed at use by CPUs on consumer hardware, in line with Monero’s aim of a widely distributed mining network.