I distinguish 20th century Constructivists (e.g. Goodman, Putnam) whose anti-Realism is global and is motivated by epistemic and semantic concerns about Realism from 21st century Constructivists (e.g. Einheuser, Goswick, Sidelle) whose anti-Realism is local and is motivated by specific metaphysical concerns.  I argue that the 21st century Constructivist programme is plausible in a way the 20th century Constructivist programme is not.  In particular, I argue that 21st century Constructivism is immune to the anti-Constructivist arguments Devitt presents in Truth and Realism and in Putting Metaphysics First.