Security fix
middleware-if-unless v1.6.1 fixes a router cache collision that could lead to middleware being executed (or skipped) for the wrong routes when iff()/unless() was called multiple times with colliding endpoint arrays.
- All users on v1.6.0 should upgrade immediately.
- v1.6.0 has been deprecated on npm.
Full changes: v1.6.0...v1.6.1