I’m a little late announcing the Enzo method paper, but we have finally finished writing the method paper that is 15 years in the making. Nevertheless, I hope this paper provides our users with a theoretical basis of the inner workings of Enzo. It accompanies the v2.3 release of Enzo, which includes a new MHD implementation, PPM implementation in CUDA, and an updated Haardt & Madau (2012) ultraviolet background. There are also many other bugfixes.