Document usage of ArithmeticSequence in Array#slice, and add to NEWS (#3952)

1 files changed, 8 insertions, 0 deletions

diff --git a/NEWS.md b/NEWS.md
index d88642b71c..447788b932 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -149,6 +149,14 @@ Outstanding ones only.
         * Array#uniq
         * Array#*
 
+    * Can be sliced with Enumerator::ArithmeticSequence
+
+        ```ruby
+        dirty_data = ['--', 'data1', '--', 'data2', '--', 'data3']
+        dirty_data[(1..).step(2)] # take each second element
+        # => ["data1", "data2", "data3"]
+        ```
+
 * ConditionVariable
 
     * ConditionVariable#wait may now invoke the `block`/`unblock` scheduler