Clojure 1.13.0-alpha3

07 July 2026
Alex Miller

Clojure 1.13.0-alpha3 is now available! Find download and usage information on the Downloads page.

:select directive in map destructuring

The :select directive binds a name to a subset of the map being destructured containing only the keys mentioned (anywhere) in the binding form.

RT.map, and thus reader, tracks new PAM thresholds
CLJ-1789 select-keys - improve performance (transients, etc)
CLJ-2958 ILookup on sets
CLJ-2902 pprint - prints arbitary objects in unreadable form
CLJ-2801 TaggedLiteral - doesn’t define print-dup
CLJ-2269 definterface - does not resolve parameter type hints
CLJ-2781 clojure.test/report - docstring has broken references
CLJ-2929 zipper - docstring typo
CLJ-2901 bytes, shorts, chars - docstring typos
CLJ-2811 scalb - docstring links to the documentation for nextDown
CLJ-2809 clojure.math/floor - docstring has line that should be on ceil docstring

Update your deps.edn :deps with:

org.clojure/clojure {:mvn/version "1.13.0-alpha3"}

Start a REPL with the Clojure CLI (any version) with:

clj -Sdeps '{:deps {org.clojure/clojure {:mvn/version "1.13.0-alpha3"}}}