+2025-06-11 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2025-06-05 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/120548
+ * include/std/format (__formatter_fp::_M_localize): Do not
+ include a leading sign character in the string to be grouped.
+ * testsuite/std/format/functions/format.cc: Check grouping when
+ sign is present in the output.
+
+2025-06-11 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2024-09-14 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/format (__formatter_fp::_M_localize): Add comments
+ and micro-optimize string copy.
+
+2025-06-11 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2025-06-04 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/99832
+ * include/bits/chrono.h (system_clock::to_time_t): Add
+ always_inline attribute to be agnostic to the underlying type of
+ time_t.
+ (system_clock::from_time_t): Add always_inline for consistency
+ with to_time_t.
+ * testsuite/20_util/system_clock/99832.cc: New test.
+
2025-06-10 Jonathan Wakely <jwakely@redhat.com>
Backported from master: