https://git.ruby-lang.org/ruby.git/commit/?id=81fd91ab1b

From 81fd91ab1ba0a17ba7d117d125cc439bc17aa6e0 Mon Sep 17 00:00:00 2001
From: Shugo Maeda <shugo@r...>
Date: Thu, 16 Sep 2021 17:28:31 +0900
Subject: Add details of Hash value ommission [ci skip]

---
 NEWS.md | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/NEWS.md b/NEWS.md
index 666f857..173afe1 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -69,10 +69,17 @@ Note that each entry is kept to a minimum, see links for details. https://github.com/ruby/ruby/blob/trunk/NEWS.md#L69
 
     [[Bug #4443]]
 
-* Values in Hash literals and keyword arguments can be omitted.  [[Feature #14579]]
+* Values in Hash literals and keyword arguments can be omitted.
+  [[Feature #14579]]
+  For example,
 
-    `{x:, y:}` is a syntax sugar of `{x: x, y: y}`.
-    `foo(x:, y:)` is a syntax sugar of `foo(x: x, y: y)`.
+    * `{x:, y:}` is a syntax sugar of `{x: x, y: y}`.
+    * `foo(x:, y:)` is a syntax sugar of `foo(x: x, y: y)`.
+
+  Constant names, local variable names, and method names are allowed as
+  key names.  Note that a reserved word is considered as a local
+  variable or method name even if it's a pseudo variable name such as
+  `self`.
 
 ## Command line options
 
-- 
cgit v1.1


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