add NEWS entry about [Feature #14045]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60403 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-10-24 13:59:59 +00:00 · 2017-10-24 13:59:59 +00:00 · a0fc5fbfd2
--- a/3
+++ b/3
@ -256,6 +256,9 @@ with all sufficient information, see the ChangeLog file or Redmine

 * Mutex rewritten to be smaller and faster [Feature #13517]

+* Performance of block passing using block parameters is improved by
+  lazy Proc allocation [Feature #14045]
+
 === Miscellaneous changes

 * Print backtrace and error message in reverse order if STDERR is unchanged and a tty.