+2021-02-01 François Dumont <fdumont@gcc.gnu.org>
+
+ PR libstdc++/70303
+ * include/bits/stl_deque.h (std::deque<>::operator-(iterator, iterator)):
+ Return 0 if both iterators are value-initialized.
+ * testsuite/23_containers/deque/70303.cc: New test.
+ * testsuite/23_containers/vector/70303.cc: New test.
+
+2021-02-01 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/xml/manual/status_cxx2011.xml: Update std::call_once
+ status.
+ * doc/xml/manual/status_cxx2014.xml: Likewise.
+ * doc/xml/manual/status_cxx2017.xml: Likewise. Update
+ std::from_chars and std::to_chars status. Fix formatting.
+ * doc/html/manual/status.html: Regenerate.
+
2021-01-28 Jonathan Wakely <jwakely@redhat.com>
* include/experimental/bits/numeric_traits.h: Update copyright