diff --git a/src/avrdude.1 b/src/avrdude.1
index 8de94951..ee4a0838 100644
--- a/src/avrdude.1
+++ b/src/avrdude.1
@@ -1,6 +1,7 @@
 .\"
 .\" avrdude - A Downloader/Uploader for AVR device programmers
-.\" Copyright (C) 2001, 2002, 2003, 2005 - 2020  Joerg Wunsch
+.\" Copyright (C) 2001, 2002, 2003, 2005 - 2023 Hans Eirik Bull,
+.\" Stefan Rueger and Joerg Wunsch
 .\"
 .\" This program is free software; you can redistribute it and/or modify
 .\" it under the terms of the GNU General Public License as published by
@@ -1855,11 +1856,14 @@ The AVR microcontroller product description can be found at
 .\" .Sh HISTORY
 .Sh AUTHORS
 .Nm Avrdude
-was written by Brian S. Dean <bsd@bsdhome.com>.
+was initially written by Brian S. Dean <bsd@bsdhome.com>.
 .Pp
-This man page by
-.ie t J\(:org Wunsch.
-.el Joerg Wunsch.
+This man page is by
+.ie t J\(:org Wunsch
+.el Joerg Wunsch
+with updates from Hans Eirik Bull and Stefan R\(:uger
+.el Stefan Rueger
+amongst others.
 .Sh BUGS
 Please report bugs via
 .Dl "https://github.com/avrdudes/avrdude/issues"
diff --git a/src/doc/avrdude.texi b/src/doc/avrdude.texi
index 95b454d9..dd2d2f5a 100644
--- a/src/doc/avrdude.texi
+++ b/src/doc/avrdude.texi
@@ -28,7 +28,8 @@ This file documents the avrdude program.
 
 For avrdude version @value{VERSION}, @value{UPDATED}.
 
-Copyright @copyright{} Brian Dean, J@"org Wunsch
+Copyright @copyright{} Hans Eirik Bull, Brian Dean, Stefan R@"uger and
+J@"org Wunsch
 
 Permission is granted to make and distribute verbatim copies of
 this manual provided the copyright notice and this permission notice
@@ -57,15 +58,16 @@ the terms of the GNU Free Documentation License (FDL), version 1.3.
 
 @titlepage
 @title AVRDUDE
-@subtitle A program for download/uploading AVR microcontroller flash and eeprom.
-@subtitle For AVRDUDE, Version @value{VERSION}, @value{UPDATED}.
-@author by Brian S. Dean
+@subtitle A program for downloading/uploading AVR microcontroller flash, EEPROM and more
+@subtitle for AVRDUDE, Version @value{VERSION}, @value{UPDATED}
+@author by Hans Eirik Bull, Brian S. Dean, Stefan R@"uger and
+@author J@"org Wunsch
 
 @page
 
 Use @uref{https://github.com/avrdudes/avrdude/issues} to report bugs and ask questions.
 
-Copyright @copyright{} Brian S. Dean, J@"org Wunsch
+Copyright @copyright{} Hans Eirik Bull, Brian S. Dean, Stefan R@"uger and J@"org Wunsch
 @sp 2
 
 Permission is granted to make and distribute verbatim copies of
@@ -99,7 +101,7 @@ For avrdude version @value{VERSION}, @value{UPDATED}.
 
 Use @uref{https://github.com/avrdudes/avrdude/issues} to report bugs and ask questions.
 
-Copyright @copyright{} Brian S. Dean, J@"org Wunsch
+Copyright @copyright{} Hans Eirik Bull, Brian S. Dean, Stefan R@"uger and J@"org Wunsch
 @end ifinfo
 
 @menu
@@ -373,13 +375,13 @@ savannah.nongnu.org,
 where it continued to be enhanced and ported to other systems.  In
 addition to FreeBSD, AVRDUDE now runs on Linux and Windows.  The
 developers behind the porting effort primarily were Ted Roth, Eric
-Weddington, and Joerg Wunsch.
+Weddington, and J@"org Wunsch.
 
 In 2022, the project moved to Github (@url{https://github.com/avrdudes/avrdude/}).
 
 And in the spirit of many open source projects, this manual also draws
 on the work of others.  The initial revision was composed of parts of
-the original Unix manual page written by Joerg Wunsch, the original web
+the original Unix manual page written by J@"org Wunsch, the original web
 site documentation by Brian Dean, and from the comments describing the
 fields in the AVRDUDE configuration file by Brian Dean.  The texi
 formatting was modeled after that of the Simulavr documentation by Ted