Changes from using a download URL that is hardcoded in the process section to using input variables that can be overridden as desired
Allows overriding the both the build type (stable vs beta, possibly others?) parameter
Allows overriding the download URL value wholesale
Adds a parameter to the download URL for the build type explicitly, which seems to always provide the requested build vs the current behavior that randomly gives you a beta build instead of a stable.
Ref this issue: https://github.com/autopkg/recipes/issues/473