I don't like "feature" so much myself, but I can live with it as long as use 5.010 also does use feature ':5.010'. I think it's helpful if code is explicit about the version it expects because then it also fails somewhat gracefully if attempted on older Perls.
Of course, what's I'd also like is this, eventually:
use 5.012; # strict on, warnings on, features up to 5.12 on
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