Current version of core.typed does not work with current Clojure 1.9.0-alpha11
This appears to be a consequence of following dependency tree:
... that is: it's unify that's broken, being pulled in through core.contracts.
August 31, 2016, 10:03 AM
Fixed in 0.3.25.
August 27, 2016, 4:02 AM
August 22, 2016, 7:40 PM
New versions of core.unify and core.contracts have been released that fix the issue.