diff --git a/doc/91_relnotes.qbk b/doc/91_relnotes.qbk
index 48e59f5..f1f4364 100644
--- a/doc/91_relnotes.qbk
+++ b/doc/91_relnotes.qbk
@@ -14,10 +14,10 @@
 [heading Boost Release 1.79]
 
 * Fixed [@https://github.com/boostorg/optional/issues/98 issue #98].
-
-[heading Boost Release 1.77]
-
 * Fixed [@https://github.com/boostorg/optional/issues/92 issue #92].
+* Added support for `BOOST_NO_IOSTREAM`.
+* Now aligned storage uses `unsigned char` rather than `char` to avoid UB.
+* Now using cv-unqualified `value_type` with placement `new` to avoid UB.
 
 [heading Boost Release 1.76]
 
diff --git a/doc/html/boost_optional/relnotes.html b/doc/html/boost_optional/relnotes.html
index fc6c8e9..f59b5e6 100644
--- a/doc/html/boost_optional/relnotes.html
+++ b/doc/html/boost_optional/relnotes.html
@@ -31,21 +31,31 @@
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_79"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_79">Boost
       Release 1.79</a>
     </h4>
-<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
+<li class="listitem">
           Fixed <a href="https://github.com/boostorg/optional/issues/98" target="_top">issue
           #98</a>.
-        </li></ul></div>
-<h4>
-<a name="boost_optional.relnotes.h1"></a>
-      <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_77"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_77">Boost
-      Release 1.77</a>
-    </h4>
-<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+        </li>
+<li class="listitem">
           Fixed <a href="https://github.com/boostorg/optional/issues/92" target="_top">issue
           #92</a>.
-        </li></ul></div>
+        </li>
+<li class="listitem">
+          Added support for <code class="computeroutput"><span class="identifier">BOOST_NO_IOSTREAM</span></code>.
+        </li>
+<li class="listitem">
+          Now aligned storage uses <code class="computeroutput"><span class="keyword">unsigned</span>
+          <span class="keyword">char</span></code> rather than <code class="computeroutput"><span class="keyword">char</span></code>
+          to avoid UB.
+        </li>
+<li class="listitem">
+          Now using cv-unqualified <code class="computeroutput"><span class="identifier">value_type</span></code>
+          with placement <code class="computeroutput"><span class="keyword">new</span></code> to avoid
+          UB.
+        </li>
+</ul></div>
 <h4>
-<a name="boost_optional.relnotes.h2"></a>
+<a name="boost_optional.relnotes.h1"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_76"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_76">Boost
       Release 1.76</a>
     </h4>
@@ -53,7 +63,7 @@
           Fixed MSVC warning C4702.
         </li></ul></div>
 <h4>
-<a name="boost_optional.relnotes.h3"></a>
+<a name="boost_optional.relnotes.h2"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_75"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_75">Boost
       Release 1.75</a>
     </h4>
@@ -67,7 +77,7 @@
         </li>
 </ul></div>
 <h4>
-<a name="boost_optional.relnotes.h4"></a>
+<a name="boost_optional.relnotes.h3"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_73"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_73">Boost
       Release 1.73</a>
     </h4>
@@ -90,7 +100,7 @@
         </li>
 </ul></div>
 <h4>
-<a name="boost_optional.relnotes.h5"></a>
+<a name="boost_optional.relnotes.h4"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_69"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_69">Boost
       Release 1.69</a>
     </h4>
@@ -108,7 +118,7 @@
         </li>
 </ul></div>
 <h4>
-<a name="boost_optional.relnotes.h6"></a>
+<a name="boost_optional.relnotes.h5"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_68"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_68">Boost
       Release 1.68</a>
     </h4>
@@ -125,7 +135,7 @@
         </li>
 </ul></div>
 <h4>
-<a name="boost_optional.relnotes.h7"></a>
+<a name="boost_optional.relnotes.h6"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_67"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_67">Boost
       Release 1.67</a>
     </h4>
@@ -139,7 +149,7 @@
         </li>
 </ul></div>
 <h4>
-<a name="boost_optional.relnotes.h8"></a>
+<a name="boost_optional.relnotes.h7"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_66"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_66">Boost
       Release 1.66</a>
     </h4>
@@ -157,7 +167,7 @@
         </li>
 </ul></div>
 <h4>
-<a name="boost_optional.relnotes.h9"></a>
+<a name="boost_optional.relnotes.h8"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_63"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_63">Boost
       Release 1.63</a>
     </h4>
@@ -181,7 +191,7 @@
         </li>
 </ul></div>
 <h4>
-<a name="boost_optional.relnotes.h10"></a>
+<a name="boost_optional.relnotes.h9"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_62"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_62">Boost
       Release 1.62</a>
     </h4>
@@ -189,7 +199,7 @@
           Fixed <a href="https://svn.boost.org/trac/boost/ticket/12179" target="_top">Trac #12179</a>.
         </li></ul></div>
 <h4>
-<a name="boost_optional.relnotes.h11"></a>
+<a name="boost_optional.relnotes.h10"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_61"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_61">Boost
       Release 1.61</a>
     </h4>
@@ -232,7 +242,7 @@
         </li>
 </ul></div>
 <h4>
-<a name="boost_optional.relnotes.h12"></a>
+<a name="boost_optional.relnotes.h11"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_60"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_60">Boost
       Release 1.60</a>
     </h4>
@@ -243,7 +253,7 @@
           #11203</a>.
         </li></ul></div>
 <h4>
-<a name="boost_optional.relnotes.h13"></a>
+<a name="boost_optional.relnotes.h12"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_59"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_59">Boost
       Release 1.59</a>
     </h4>
@@ -257,7 +267,7 @@
         </li>
 </ul></div>
 <h4>
-<a name="boost_optional.relnotes.h14"></a>
+<a name="boost_optional.relnotes.h13"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_58"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_58">Boost
       Release 1.58</a>
     </h4>
@@ -293,7 +303,7 @@
         </li>
 </ul></div>
 <h4>
-<a name="boost_optional.relnotes.h15"></a>
+<a name="boost_optional.relnotes.h14"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_57"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_57">Boost
       Release 1.57</a>
     </h4>
@@ -303,7 +313,7 @@
           to fix C++03 compile error on <code class="computeroutput"><span class="identifier">logic_error</span><span class="special">(</span><span class="string">"..."</span><span class="special">)</span></code>"</em></span>.
         </li></ul></div>
 <h4>
-<a name="boost_optional.relnotes.h16"></a>
+<a name="boost_optional.relnotes.h15"></a>
       <span class="phrase"><a name="boost_optional.relnotes.boost_release_1_56"></a></span><a class="link" href="relnotes.html#boost_optional.relnotes.boost_release_1_56">Boost
       Release 1.56</a>
     </h4>
diff --git a/doc/html/boost_optional/tutorial/gotchas/mixed_relational_comparisons.html b/doc/html/boost_optional/tutorial/gotchas/mixed_relational_comparisons.html
index 8771851..c89f67d 100644
--- a/doc/html/boost_optional/tutorial/gotchas/mixed_relational_comparisons.html
+++ b/doc/html/boost_optional/tutorial/gotchas/mixed_relational_comparisons.html
@@ -30,7 +30,7 @@
 <p>
           Because <code class="computeroutput"><span class="identifier">T</span></code> is convertible
           to <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code>
-          and because <code class="computeroutput"><span class="identifier">opiotnal</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code>
+          and because <code class="computeroutput"><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code>
           is <a href="http://www.sgi.com/tech/stl/LessThanComparable.html" target="_top"><code class="computeroutput"><span class="identifier">LessThanComparable</span></code></a> when <code class="computeroutput"><span class="identifier">T</span></code> is <a href="http://www.sgi.com/tech/stl/LessThanComparable.html" target="_top"><code class="computeroutput"><span class="identifier">LessThanComparable</span></code></a>, you can sometimes
           get an unexpected runtime result where you would rather expect a compiler
           error:
diff --git a/doc/html/boost_optional/tutorial/gotchas/moved_from__optional_.html b/doc/html/boost_optional/tutorial/gotchas/moved_from__optional_.html
index 5c4b1cf..7924e61 100644
--- a/doc/html/boost_optional/tutorial/gotchas/moved_from__optional_.html
+++ b/doc/html/boost_optional/tutorial/gotchas/moved_from__optional_.html
@@ -42,7 +42,7 @@
           Quite a lot of people expect that when an object that contains a value
           is moved from, its contained value should be destroyed. This is not so,
           for performance reasons. Current semantics allow the implementation of
-          <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">opiotnal</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code>
+          <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">optional</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">&gt;</span></code>
           to be trivially copyable when <code class="computeroutput"><span class="identifier">T</span></code>
           is trivial.
         </p>
diff --git a/doc/html/index.html b/doc/html/index.html
index 08105c5..5b905c1 100644
--- a/doc/html/index.html
+++ b/doc/html/index.html
@@ -145,7 +145,7 @@
 </div>
 </div>
 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
-<td align="left"><p><small>Last revised: November 20, 2021 at 00:57:52 GMT</small></p></td>
+<td align="left"><p><small>Last revised: March 26, 2022 at 22:47:53 GMT</small></p></td>
 <td align="right"><div class="copyright-footer"></div></td>
 </tr></table>
 <hr>