From 15ef28a991f66f65bb29751cf2bef3bcb51066fc Mon Sep 17 00:00:00 2001
From: normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 25 Feb 2017 02:31:03 +0000
Subject: NEWS: document String#-@ change

* test/ruby/test_string.rb (test_uplus_minus): test deduplication
  [ruby-core:79747] [Feature #13077]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57710 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 NEWS | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'NEWS')

diff --git a/NEWS b/NEWS
index 33268b8762..2a0413f006 100644
--- a/NEWS
+++ b/NEWS
@@ -28,6 +28,11 @@ with all sufficient information, see the ChangeLog file or Redmine
 
   * Thread#fetch  [Feature #13009]
 
+* String
+
+  * String#-@ deduplicates unfrozen strings.  Already-frozen
+    strings remain unchanged for compatibility.  [Feature #13077]
+
 === Stdlib updates (outstanding ones only)
 
 === Compatibility issues (excluding feature bug fixes)
-- 
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