https://clojure.org/news/2022/03/22/clojure-1-11-0

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Clojure 1.11.0 release



Clojure 1.11.0 release

22 March 2022
Alex Miller

Clojure 1.11 provides new syntax for keyword argument invocation,
namespace aliasing without loading, a new clojure.math namespace, and
many additional bug fixes and enhancements.

Keyword arguments are optional trailing variadic arguments of the
form (f akey aval bkey bval ... ). Invoking functions with keyword
arguments is convenient for people to write, but keyword args are not
collections so they are hard to flow between functions. In Clojure
1.11, functions taking keyword arguments can now be passed a trailing
map instead of or in addition to and following the key/value pairs.
When a lone map is passed, it is used for destructuring, else the
trailing map is added to the key/value pair map by conj. This change
makes keyword arg functions more convenient for programmatic use.

Spec (and other libs) rely on qualified keywords as spec names.
Namespace aliasing in ns makes long names shorter but required
namespaces to exist and be loaded. In Clojure 1.11, require adds a
new option :as-alias, which is like :as but does not require the
namespace to exist or load.

The JDK package java.lang.Math provides access to many useful math
functions. Clojure previously relied on using these via interop, but
this had issues with discoverability, primitive performance, higher
order application, and portability. The new clojure.math namespace
provides wrapper functions for the methods available in
java.lang.Math for long and double overloads with fast primitive
invocation.

Additionally, a number of functions have been added to clojure.core:
abs NaN? infinite? parse-double parse-long parse-boolean parse-uuid
random-uuid update-keys update-vals and iteration.

 Detailed changelog

See the change log for a complete list of all changes in Clojure
1.11.0.

 Contributors

Thanks to all the community members who contributed patches to
Clojure 1.11:

  * Alexander Yakushev

  * Ambrose Bonnaire-Sergeant

  * Arne Brasseur

  * Ghadi Shayban

  * Howard Lewis Ship

  * Hugo Duncan

  * Jonathan Johnston

  * Keyhan Vakil

  * Marc O'Morain

  * Michiel Borkent

  * Nikita Prokopov

  * Paula Gearon

  * Steve Miner

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