+2023-12-13 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-12-13 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/chrono_io.h (__formatter_chrono::_M_C_y_Y): Do
+ not round century down for %Y formats.
+
+2023-12-13 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-12-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/std/format/functions/format.cc: Check for expected
+ output for char and bool arguments.
+ * testsuite/std/format/string.cc: Check that 0 filling is
+ rejected for character and string formats.
+
+2023-12-13 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-12-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/chrono_io.h (__formatter_chrono::_M_C_y_Y): Fix
+ rounding for negative centuries.
+ * testsuite/std/time/year/io.cc: Check %C for negative years.
+
2023-12-09 Jonathan Wakely <jwakely@redhat.com>
Backported from master: