+2022-11-24 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2022-09-15 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/memory: Do not include <bits/stl_algobase.h>.
+
+2022-11-24 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2022-11-11 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/20_util/tuple/swap.cc (MoveOnly::operator==): Add
+ const qualifier.
+ * testsuite/26_numerics/valarray/87641.cc (X::operator==):
+ Likewise.
+
+2022-11-24 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2022-11-02 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/expected (expected::_M_invalid): Remove.
+
+2022-11-24 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2022-11-21 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/chrono.h (duration): Check preconditions on
+ template arguments before using them.
+
+2022-11-24 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2022-10-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/fs_path.h (path::filename()): Fix dangling
+ reference.
+
+2022-11-24 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2022-09-14 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/xml/manual/intro.xml: Document LWG 1203.
+ * doc/html/*: Regenerate.
+
+2022-11-24 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2022-09-07 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/barrier: Add missing runtime exception.
+
+2022-11-24 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2022-08-04 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/fs_dir.h (directory_iterator): Add comparison
+ with std::default_sentinel_t. Remove redundant operator!= for
+ C++20.
+ * (recursive_directory_iterator): Likewise.
+ * include/bits/iterator_concepts.h [!__cpp_lib_concepts]
+ (default_sentinel_t, default_sentinel): Define even if concepts
+ are not supported.
+ * include/bits/regex.h (regex_iterator): Add comparison with
+ std::default_sentinel_t. Remove redundant operator!= for C++20.
+ (regex_token_iterator): Likewise.
+ (regex_token_iterator::_M_end_of_seq()): Add noexcept.
+ * testsuite/27_io/filesystem/iterators/lwg3719.cc: New test.
+ * testsuite/28_regex/iterators/regex_iterator/lwg3719.cc:
+ New test.
+ * testsuite/28_regex/iterators/regex_token_iterator/lwg3719.cc:
+ New test.
+
+2022-11-24 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2022-09-23 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/91456
+ * include/std/type_traits (__is_nothrow_invocable): Remove.
+ (__is_invocable_impl::__nothrow_type): New member type which
+ checks if the conversion can throw.
+ (__is_nt_invocable_impl): Replace class template with alias
+ template to __is_nt_invocable_impl::__nothrow_type.
+ * testsuite/20_util/is_nothrow_invocable/91456.cc: New test.
+ * testsuite/20_util/is_nothrow_convertible/value.cc: Remove
+ macro used by value_ext.cc test.
+ * testsuite/20_util/is_nothrow_convertible/value_ext.cc: Remove
+ test for non-standard __is_nothrow_invocable trait.
+
2022-11-22 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/106201