Expected behavior

req.logout() without a callback should work, as it did before and as your docs show.

Actual behavior

Error is thrown: req#logout requires a callback function

• passport version: 0.6.0

This bug was introduced four days ago in this commit.

The branch that doesn't use session manager which you added later has done && done() as expected but the other one now checks whether done is a function and throws if it's not. It should probably also check for existence first.