diff --git a/doc/deprecated.html b/doc/deprecated.html
index e44675f..507b8f6 100644
--- a/doc/deprecated.html
+++ b/doc/deprecated.html
@@ -445,10 +445,9 @@ beginning of <code>main()</code> is too error prone.&nbsp; An equivalent
 function can trivially be provided by a user.</p>
 
 <hr>
-<p>Revised
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->29 December, 2014<!--webbot bot="Timestamp" endspan i-checksum="38652" --></p>
 
 <p>&copy; Copyright Beman Dawes, 2002-2005, 2010</p>
+<p>&copy; Copyright Andrey Semashev, 2019-2021</p>
 <p> Use, modification, and distribution are subject to the Boost Software
 License, Version 1.0. See <a href="http://www.boost.org/LICENSE_1_0.txt">
 www.boost.org/LICENSE_1_0.txt</a></p>
diff --git a/doc/design.htm b/doc/design.htm
index dca0338..3013dc9 100644
--- a/doc/design.htm
+++ b/doc/design.htm
@@ -339,8 +339,6 @@ Variable Considered Harmful</i>, ACM SIGPLAN Notices, 8, 2, 1973, pp. 23-34</td>
 </table>
 
 <hr>
-<p>Revised
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->26 December, 2014<!--webbot bot="Timestamp" endspan i-checksum="38646" --></p>
 
 <p>&copy; Copyright Beman Dawes, 2002</p>
 <p> Use, modification, and distribution are subject to the Boost Software
diff --git a/doc/faq.htm b/doc/faq.htm
index 13531f1..eb5729e 100644
--- a/doc/faq.htm
+++ b/doc/faq.htm
@@ -141,8 +141,6 @@ path</i> member
 functions, while operations performed by the operating system are provided as
 free functions.</p>
 <hr>
-<p>Revised
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->29 December, 2014<!--webbot bot="Timestamp" endspan i-checksum="38652" --></p>
 <p>&copy; Copyright Beman Dawes, 2002</p>
 <p> Use, modification, and distribution are subject to the Boost Software
 License, Version 1.0. See <a href="http://www.boost.org/LICENSE_1_0.txt">
diff --git a/doc/index.htm b/doc/index.htm
index 5c85482..d6cce5e 100644
--- a/doc/index.htm
+++ b/doc/index.htm
@@ -486,10 +486,9 @@ of portability&quot; problem, particularly in postings by PJ Plauger and Pete Be
 version 1.31.0.&nbsp;</p>
 
 <hr>
-<p>Revised
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->25 October, 2015<!--webbot bot="Timestamp" endspan i-checksum="38877" --></p>
 
 <p>&copy; Copyright Beman Dawes, 2002-2005</p>
+<p>&copy; Copyright Andrey Semashev, 2021</p>
 <p> Use, modification, and distribution are subject to the Boost Software
 License, Version 1.0. See <a href="http://www.boost.org/LICENSE_1_0.txt">
 www.boost.org/LICENSE_1_0.txt</a></p>
diff --git a/doc/issue_reporting.html b/doc/issue_reporting.html
index ce57921..818337b 100644
--- a/doc/issue_reporting.html
+++ b/doc/issue_reporting.html
@@ -212,9 +212,8 @@ that:<ul>
   answered and there is no email address attached for followup.]</b></li>
 </ol>
 <hr>
-<p>Revised
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->28 January, 2015<!--webbot bot="Timestamp" endspan i-checksum="38902" --></p>
 <p>&copy; Copyright Beman Dawes, 2014</p>
+<p>&copy; Copyright Andrey Semashev, 2019, 2021</p>
 <p> Distributed under the Boost Software
 License, Version 1.0. See <a href="http://www.boost.org/LICENSE_1_0.txt">
 www.boost.org/LICENSE_1_0.txt</a></p>
diff --git a/doc/portability_guide.htm b/doc/portability_guide.htm
index 2962f97..7e1a948 100644
--- a/doc/portability_guide.htm
+++ b/doc/portability_guide.htm
@@ -229,8 +229,6 @@ portability yet not overly restrict expressiveness.</p>
 </table>
 
 <hr>
-<p>Revised
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->29 December, 2014<!--webbot bot="Timestamp" endspan i-checksum="38652" --></p>
 
 <p>&copy; Copyright Beman Dawes, 2002, 2003</p>
 <p> Use, modification, and distribution are subject to the Boost Software
diff --git a/doc/reference.html b/doc/reference.html
index f1b2317..aa80ddd 100644
--- a/doc/reference.html
+++ b/doc/reference.html
@@ -4449,10 +4449,8 @@ multiple string types. His idea became the basis for the version 3 path design.<
 </table>
 <hr>
 <p><font size="2">&copy; Copyright Beman Dawes, 2002, 2006, 2007, 2009, 2010, 2011</font></p>
+<p><font size="2">&copy; Copyright Andrey Semashev, 2019-2021</font></p>
 <p><font size="2">Distributed under the Boost Software License, Version 1.0. See
-</font>
-<a href="http://www.boost.org/LICENSE_1_0.txt"><font size="2">www.boost.org/LICENSE_1_0.txt</font></a></p>
-<p><font size="2">Revised
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B %Y" startspan -->01 December 2015<!--webbot bot="Timestamp" endspan i-checksum="39286" --></font></p>
+<a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a></font></p>
 </body>
 </html>
diff --git a/doc/relative_proposal.html b/doc/relative_proposal.html
index 3484aa9..81c7093 100644
--- a/doc/relative_proposal.html
+++ b/doc/relative_proposal.html
@@ -503,8 +503,6 @@ path proximate(const path&amp; p, const path&amp; base, system::error_code&amp;
 <p>&copy; Copyright Beman Dawes 2015</p>
 <p>Distributed under the Boost Software License, Version 1.0. See
 <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a></p>
-<p>Revised
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B %Y" startspan -->25 October 2015<!--webbot bot="Timestamp" endspan i-checksum="32445" --></p>
 
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diff --git a/doc/release_history.html b/doc/release_history.html
index 68e0a1f..e0d7133 100644
--- a/doc/release_history.html
+++ b/doc/release_history.html
@@ -587,9 +587,8 @@
   <li>Miscellaneous implementation code cleanup. </li>
 </ul>
 <hr>
-<p>Revised
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->07 August, 2017<!--webbot bot="Timestamp" endspan i-checksum="34770" --></p>
 <p>&copy; Copyright Beman Dawes, 2011</p>
+<p>&copy; Copyright Andrey Semashev, 2019-2021</p>
 <p> Use, modification, and distribution are subject to the Boost Software
 License, Version 1.0. See <a href="http://www.boost.org/LICENSE_1_0.txt">
 www.boost.org/LICENSE_1_0.txt</a></p>
diff --git a/doc/tutorial.html b/doc/tutorial.html
index 81aa6ca..498b05d 100644
--- a/doc/tutorial.html
+++ b/doc/tutorial.html
@@ -1333,8 +1333,6 @@ It has a
 <p>&copy; Copyright Beman Dawes 2010, 2015</p>
 <p>Distributed under the Boost Software License, Version 1.0. See
 <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a></p>
-<p>Revised
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B %Y" startspan -->07 August 2017<!--webbot bot="Timestamp" endspan i-checksum="31490" --></p>
 
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diff --git a/doc/v3.html b/doc/v3.html
index a7c9ee3..b266fae 100644
--- a/doc/v3.html
+++ b/doc/v3.html
@@ -144,8 +144,6 @@ several Boost releases. Version 2 was removed in Boost 1.50.0.</p>
 <p>&copy; Copyright Beman Dawes, 2009</p>
 <p>Distributed under the Boost Software License, Version 1.0. See
 <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a></p>
-<p>Revised
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B %Y" startspan -->29 December 2014<!--webbot bot="Timestamp" endspan i-checksum="39176" --></p>
 
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diff --git a/doc/v3_design.html b/doc/v3_design.html
index e271104..e54be27 100644
--- a/doc/v3_design.html
+++ b/doc/v3_design.html
@@ -187,8 +187,6 @@ and implementation of the copy_any,
 copy_directory, copy_symlink, and read_symlink functions.</p>
 
 <hr>
-<p>Revised
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->29 December, 2014<!--webbot bot="Timestamp" endspan i-checksum="38652" --></p>
 
 <p>&copy; Copyright Beman Dawes, 2008</p>
 <p> Use, modification, and distribution are subject to the Boost Software