FLoops.jl 0.2 defaults to a parallel loop; i.e., it uses a parallel executor (e.g., ThreadedEx) when the executor is not specified and the explicit sequential form @floop begin ... end is not used.

That is to say, @floop without @reduce such as

@floop for i in eachindex(ys, xs)
    ys[i] = f(xs[i])
end

is now executed in parallel by default.