Volunteer-driven episode guide for The Joy of Coding
Finding a Regression range using Mach mozregression ./mach mozregression –launch 2019-10-01 - gets the Nightly build from 1st October ./mach mozregression –good 2019-10-01 - indicates this build is running as expected … it will then download several builds asking you if the function works or not, to which you answer Good or Bad.