+2023-04-28 Patrick Palka <ppalka@redhat.com>
+
+ Backported from master:
+ 2023-04-24 Patrick Palka <ppalka@redhat.com>
+
+ * include/bits/max_size_type.h (__max_diff_type::operator>>=):
+ Fix propagation of sign bit.
+ * testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
+ non-standard 'signed typedef-name'. Add some compile-time tests
+ for right-shifting a negative __max_diff_type value by more than
+ one.
+
+2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/random.h (gamma_distribution): Add to the right
+ doxygen group.
+ (discrete_distribution, piecewise_constant_distribution)
+ (piecewise_linear_distribution): Create a new doxygen group and
+ fix the incomplete doxygen comments.
+ * include/bits/uniform_int_dist.h (uniform_int_distribution):
+ Add to doxygen group.
+
+2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/uses_allocator.h: Add missing @file comment.
+ * include/bits/regex.tcc: Remove stray doxygen comments.
+ * include/experimental/memory_resource: Likewise.
+ * include/std/bit: Tweak doxygen @cond comments.
+ * include/std/expected: Likewise.
+ * include/std/numbers: Likewise.
+
+2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
+ from header paths.
+
+2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/move.h: Simplify opening/closing namespace std.
+
+2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-04-27 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/memory_resource.h: Improve doxygen comments.
+ * include/std/memory_resource: Likewise.
+
+2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-04-27 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/40380
+ * include/bits/basic_string.h: Improve doxygen comments.
+ * include/bits/cow_string.h: Likewise.
+ * include/bits/forward_list.h: Likewise.
+ * include/bits/fs_dir.h: Likewise.
+ * include/bits/fs_path.h: Likewise.
+ * include/bits/quoted_string.h: Likewise.
+ * include/bits/stl_bvector.h: Likewise.
+ * include/bits/stl_map.h: Likewise.
+ * include/bits/stl_multimap.h: Likewise.
+ * include/bits/stl_multiset.h: Likewise.
+ * include/bits/stl_set.h: Likewise.
+ * include/bits/stl_vector.h: Likewise.
+ * include/bits/unordered_map.h: Likewise.
+ * include/bits/unordered_set.h: Likewise.
+ * include/std/filesystem: Likewise.
+ * include/std/iomanip: Likewise.
+
2023-04-27 Jonathan Wakely <jwakely@redhat.com>
Backported from master: