Update C++17 library status table in manual

diff --git a/libstdc++-v3/doc/xml/manual/appendix_contributing.xml b/libstdc++-v3/doc/xml/manual/appendix_contributing.xml
index e967f61..dbc671e 100644
--- a/libstdc++-v3/doc/xml/manual/appendix_contributing.xml
+++ b/libstdc++-v3/doc/xml/manual/appendix_contributing.xml
@@ -285,7 +285,19 @@  It has subdirectories:
       Headers that define extensions to the standard library.  No
       standard header refers to any of them, in theory (there are some
       exceptions).
-      </listitem>
+    </listitem>
+    </varlistentry>
+
+    <varlistentry>
+    <term>
+      <filename class="directory">include/debug</filename>,
+      <filename class="directory">include/parallel</filename>, and
+      <filename class="directory">include/profile</filename>
+    </term>
+    <listitem>
+      Headers that implement the Debug Mode, Parallel Mode, and Profile Mode
+      extensions.
+    </listitem>
     </varlistentry>
     </variablelist>
   </listitem>
diff --git a/libstdc++-v3/doc/xml/manual/status_cxx2017.xml b/libstdc++-v3/doc/xml/manual/status_cxx2017.xml
index e0e4e8e..7a158b9 100644
--- a/libstdc++-v3/doc/xml/manual/status_cxx2017.xml
+++ b/libstdc++-v3/doc/xml/manual/status_cxx2017.xml
@@ -471,6 +471,29 @@  Feature-testing recommendations for C++</link>.
     </row>
 
     <row>
+      <entry> Adding more constexpr to <code>&lt;chrono&gt;</code> </entry>
+      <entry>
+	<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0505r0.html">
+	P0505R0
+	</link>
+      </entry>
+      <entry align="center"> 7 </entry>
+      <entry><code> ??? </code></entry>
+    </row>
+
+    <row>
+      <?dbhtml bgcolor="#B0B0B0" ?>
+      <entry> Constexpr for <code>std::char_traits</code> </entry>
+      <entry>
+	<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0426r1.html">
+	P0426R1
+	</link>
+      </entry>
+      <entry align="center"> 7 (partial) </entry>
+      <entry><code> ??? </code></entry>
+    </row>
+
+    <row>
       <entry> Integrating <code>std::string_view</code> and <code>std::string</code> </entry>
       <entry>
 	<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0254r2.pdf">
@@ -552,6 +575,17 @@  Feature-testing recommendations for C++</link>.
     </row>
 
     <row>
+      <entry> Return type of <code>emplace</code> </entry>
+      <entry>
+	<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0084r2.pdf">
+	P0084R2
+	</link>
+      </entry>
+      <entry align="center"> 7 </entry>
+      <entry><code> ??? </code></entry>
+    </row>
+
+    <row>
       <entry> Splicing Maps and Sets </entry>
       <entry>
 	<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0083r3.pdf">
@@ -718,8 +752,7 @@  Feature-testing recommendations for C++</link>.
     </row>
 
     <row>
-      <?dbhtml bgcolor="#C8B0B0" ?>
-      <entry>  </entry> byte type definition
+      <entry> byte type definition </entry>
       <entry>
 	<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0298r3.pdf">
 	P0298R3
@@ -729,6 +762,18 @@  Feature-testing recommendations for C++</link>.
       <entry><code> ??? </code></entry>
     </row>
 
+    <row>
+      <?dbhtml bgcolor="#C8B0B0" ?>
+      <entry> Elementary string conversions </entry>
+      <entry>
+	<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0067r5.html">
+	P0067R5
+	</link>
+      </entry>
+      <entry align="center"> No </entry>
+      <entry><code> ??? </code></entry>
+    </row>
+
 
   </tbody>
 </tgroup>