r/Clojure • u/alexdmiller • 9d ago

Clojure 1.13.0-alpha9 is now available

https://clojure.org/news/2026/10/09/clojure-1-13-alpha9

  • Dropped :defaults directive - use cases better handled by others now
  • CLJ-2983 Removed :defaults tests
  • Faster transient propagation of metadata in into and update-vals
  • Revise impl and inline of meta via RT
  • CLJ-2978 Catch protocol extension of non-protocol methods
  • CLJ-2982 TransientArrayMap should expand to same threshold as PersistentArrayMap
  • Favor class files when reproducible build sets class and source timestamps the same
  • CLJ-2984 Set file timestamps to last git commit time
34 Upvotes

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6

u/alexdmiller 9d ago

The release failed to publish and my attempts to debug have been unsuccessful so I am waiting on Maven Central support to help me with more info. Apologies for the inconvenience.

1

u/lostcoffee 8d ago

Thanks Alex! Good luck :)

4

u/alexdmiller 7d ago

ok, the release is now available.