ko1	2014-11-25 17:07:44 +0900 (Tue, 25 Nov 2014)

  New Revision: 48564

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=48564

  Log:
    * NEWS: add an "Implementation changes" section.

  Modified files:
    trunk/ChangeLog
    trunk/NEWS
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 48563)
+++ ChangeLog	(revision 48564)
@@ -1,3 +1,7 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Tue Nov 25 17:07:06 2014  Koichi Sasada  <ko1@a...>
+
+	* NEWS: add an "Implementation changes" section.
+
 Tue Nov 25 16:09:28 2014  Eric Hodel  <drbrain@s...>
 
 	* lib/net/http.rb:  Do not attempt SSL session resumption when the
Index: NEWS
===================================================================
--- NEWS	(revision 48563)
+++ NEWS	(revision 48564)
@@ -321,3 +321,16 @@ with all sufficient information, see the https://github.com/ruby/ruby/blob/trunk/NEWS#L321
 * jemalloc is optionally supported via `./configure --with-jemalloc`
   jemalloc may be suitable when system malloc is slow or prone
   to fragmentation.  [Feature #9113]
+
+=== Implementation changes
+
+* GC
+    * Most symbols which are returned by String#to_sym and
+      String#intern are GC-able [Feature #9634]
+    * Introduce incremental marking for major GC. [Feature #10137]
+
+* VM
+    * Use frozen string literals for Hash#[] and Hash#[]=
+    * Fast keyword arguments passing [Feature #10440]
+    * Allow to receive huge splatted array by a rest argument
+      [Feature #10440]

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