As mentioned yesterday, today we’re taking a bit of a step back to an earlier portion of the spec, which was just updated. Here’s the first part of the updated section of the spec (new additions emphasized): For statements with range clause A “for” statement with a “range” clause iterates through all entries of an array, slice, string or map, values received on a channel, integer values from zero to an upper limit [Go 1.| Boldly Go