ENZO: An Adaptive Mesh Refinement Code for Astrophysics (Version 2.6). - Corey Brummel-Smith; Greg Bryan; Iryna Butsky; Lauren Corlies; Andrew Emerick; John C. Forbes; Yusuke Fujimoto; Nathan J. Goldbaum; Philipp Grete; Cameron Hummels; Ji-hoon Kim; Daegene Koh; et al. (J. Open Source Softw., 2019)