k0kubun	2019-04-17 18:24:48 +0900 (Wed, 17 Apr 2019)

  New Revision: 67597

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=67597

  Log:
    NEWS: note about recent changes around JIT [ci skip]
    
    This diff is backported from the upcoming preview release note.

  Modified files:
    trunk/NEWS
Index: NEWS
===================================================================
--- NEWS	(revision 67596)
+++ NEWS	(revision 67597)
@@ -100,6 +100,11 @@ profile.rb, Profiler__:: https://github.com/ruby/ruby/blob/trunk/NEWS#L100
 
 JIT::
 
+  * JIT-ed code is recompiled to less-optimized code when an optimization assumption is invalidated.
+
+  * Method inlining is performed when a method is considered as pure.
+    This optimization is still experimental and many methods are NOT considred as pure yet.
+
   * Default value of +--jit-max-cache+ is changed from 1,000 to 100
 
   * Default value of +--jit-min-calls+ is changed from 5 to 10,000

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