+2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-05-11 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109758
+ * include/bits/std_abs.h (abs(__float128)): Handle negative NaN
+ and negative zero correctly.
+ * testsuite/26_numerics/headers/cmath/109758.cc: New test.
+
+2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-05-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/experimental/feat-cxx14.cc: Remove dependency on
+ _GLIBCXX_USE_C99_STDINT_TR1.
+
+2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-05-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/21_strings/basic_string_view/typedefs.cc: Remove
+ dependency on _GLIBCXX_USE_C99_STDINT_TR1.
+ * testsuite/experimental/string_view/typedefs.cc: Likewise.
+
+2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
+ Add const to equality operator.
+
+2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/xml/manual/evolution.xml: Document removal of implicit
+ allocator rebinding extensions in strict mode and for C++20.
+ * doc/html/*: Regenerate.
+
+2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-05-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Use a non-null pointer
+ to check for nan, nanf, and nanl.
+ * configure: Regenerate.
+
+2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-05-16 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/libstdc++-prettyprinters/chrono.cc: Only test
+ printer for chrono::zoned_time for cx11 ABI and tzdb effective
+ target.
+
+2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ Backported from master:
+ 2023-05-09 Jonathan Wakely <jwakely@redhat.com>
+
+ * python/libstdcxx/v6/printers.py (StdChronoDurationPrinter):
+ Print floating-point durations correctly.
+ (StdChronoTimePointPrinter): Support printing only the value,
+ not the type name. Uncomment handling for known clocks.
+ (StdChronoZonedTimePrinter): Remove type names from output.
+ (StdChronoCalendarPrinter): Fix hh_mm_ss member access.
+ (StdChronoTimeZonePrinter): Add equals sign to output.
+ * testsuite/libstdc++-prettyprinters/chrono.cc: New test.
+
2023-05-30 Alexandre Oliva <oliva@adacore.com>
Backported from master: