+2021-06-03 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2021-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/100833
+ * include/bits/range_access.h (ranges::advance(iter, n, sentinel)):
+ Fix return value for no-op case.
+ * testsuite/24_iterators/range_operations/advance.cc: Test
+ return values of three-argument overload.
+
+2021-06-03 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2021-05-26 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/100768
+ * include/bits/range_access.h (ranges::advance)
+ (ranges::distance, ranges::next, ranges::prev): Replace
+ function templates with function objects.
+ * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc:
+ Adjust for changes to function objects.
+ * testsuite/std/ranges/adaptors/elements.cc: Add using
+ declarations for names from namespace ranges.
+ * testsuite/std/ranges/adaptors/transform.cc: Likewise.
+ * testsuite/24_iterators/range_operations/100768.cc: New test.
+
+2021-06-03 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2021-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/99453
+ * python/Makefile.am: Use archive name for printer hook if no
+ dynamic library name is available.
+ * python/Makefile.in: Regenerate.
+
+2021-06-03 Philippe Blain <levraiphilippeblain@gmail.com>
+
+ Backported from master:
+ 2021-04-21 Philippe Blain <levraiphilippeblain@gmail.com>
+ Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/99453
+ * python/Makefile.am: Install libstdc++*-gdb.py more robustly.
+ * python/Makefile.in: Regenerate.
+
2021-05-17 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/100630