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diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 2b56c0e44ed..1e8f64bb72b 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,102 @@
+2012-01-03  François Dumont <fdumont@gcc.gnu.org>
+
+	* include/bits/hashtable_policy.h (_Ebo_helper<>): Rename to the more
+	specific _Hashtable_ebo_helper. Hide this implementation detail thanks
+	to private inheritance.
+
+2012-01-03  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/51738
+	* testsuite/23_containers/map/element_access/39901.cc: New.
+
+2011-12-30  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
+	* doc/xml/manual/extensions.xml: Improve markup and note that some
+	extensions are included in C++11.
+	* doc/xml/manual/concurrency_extensions.xml: Likewise.
+
+2011-12-30  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR libstdc++/51711
+	* include/bits/regex.h (regex_replace): Fix thinko.
+	* testsuite/28_regex/algorithms/regex_replace/char/51711.cc: New.
+	* testsuite/28_regex/algorithms/regex_replace/wchar_t/51711.cc:
+	Likewise.
+
+2011-12-29  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	* include/bits/hashtable_policy.h (struct _Ebo_helper<>): Don't use
+	_N, badname on Solaris; minor stylistic changes.
+
+2011-12-29  François Dumont <fdumont@gcc.gnu.org>
+
+	PR libstdc++/51608
+	* include/bits/hashtable_policy.h (_Equal_helper<>): New, change the
+	way the _Equal functor is used depending on whether hash code is
+	cached or not.
+	(_Ebo_helper<>): New helper type to introduce EBO when possible.
+	(_Hash_code_base): Use _Ebo_helper to limit memory footprint. Move
+	_Equal functor management...
+	(_Hashtable_base): ...here, new, use _Equal_helper.
+	(_Local_iterator_base<>, _Local_iterator<>, _Local_const_iterator<>):
+	New, use _Hash_code_base, implementation of...
+	* include/bits/hashtable.h (_Hashtable<>::local_iterator,
+	_Hashtable<>::const_local_iterator): ...those. Add static assertions
+	checking that some functors are empty depending on whether hash code
+	is cache or not.
+	(_Hashtable<>::_M_bucket_index): New overloads using current bucket
+	count, use through out the _Hastable<> implementation.
+	* include/bits/unordered_set.h (__unordered_set<>,
+	__unordered_multiset<>): Cache hash code iff hash functor is not
+	empty and not final.
+	* include/bits/unordered_map.h (__unordered_map<>,
+	__unordered_multimap<>): Likewise.
+	* include/debug/unordered_map
+	(unordered_map<>::_S_to_local, unordered_multimap<>::_S_to_local):
+	Adapt to match new local iterator implementation.
+	* include/debug/unordered_set (unordered_set<>::_S_to_local,
+	unordered_multiset<>::_S_to_local): Likewise.
+	* include/profile/unordered_map (unordered_map<>::_M_profile_destruct,
+	unordered_multimap<>::_M_profile_destruct): Enhance thanks to usage of
+	local iterators.
+	* include/profile/unordered_set (unordered_set<>::_M_profile_destruct,
+	unordered_multiset<>::_M_profile_destruct): Likewise.
+	* testsuite_files/23_containers/unordered_set/instantiation_neg.cc:
+	Fix error line.
+	* testsuite_files/23_containers/unordered_set/final_hash.cc: New.
+	* testsuite_files/23_containers/unordered_multiset/final_hash.cc: New.
+	* testsuite_files/23_containers/unordered_map/final_hash.cc: New.
+	* testsuite_files/23_containers/unordered_multimap/final_hash.cc: New.
+
+2011-12-29  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
+	PR libstdc++/51701
+	* doc/xml/manual/extensions.xml (Input and Output): Remove reference
+	to RWLock class.
+
+2011-12-23  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
+	* testsuite/tr1/2_general_utilities/shared_ptr/cons/
+	weak_ptr_expired.cc: Modify to PASS instead of XFAIL.
+
+2011-12-23  Kai Tietz  <ktietz@redhat.com>
+
+	* config/os/mingw32-w64/os_defines.h (__USE_MINGW_ANSI_STDIO): Define.
+
+2011-12-23  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
+	* include/c_global/cinttypes: Update comments that refer to TR1.
+
+2011-12-23  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
+	PR libstdc++/49204
+	* include/std/future (future_errc): Implement LWG 2056.
+
+2011-12-23  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
+	* include/bits/regex.h (match_results::size_type): Use
+	allocator_traits.
+
 2011-12-22  Jonathan Wakely  <jwakely.gcc@gmail.com>
 
 	PR libstdc++/48362