6 files changed, 42 insertions, 9 deletions
diff --git a/doc/doxygen/acknowledge.txt b/doc/doxygen/acknowledge.txt
index 90dd6fe..c4be89e 100644
--- a/doc/doxygen/acknowledge.txt
+++ b/doc/doxygen/acknowledge.txt
@@ -4,21 +4,40 @@ Many thanks to the following people for providing bug fixes and improvements:
 <UL>
 <LI>Stephen Sinclair (major code and repository support!)</LI>
 <LI>Stefan Arisona</LI>
+<LI>bejuryu</LI>
 <LI>Vincent B&eacute;nony</LI>
+<LI>Francesco Bertolaccini</LI>
+<LI>Benjamin Brown</LI>
+<LI>Claudio Cabral</LI>
+<LI>JP Cimalando</LI>
 <LI>Rasmus Ekman</LI>
 <LI>Anders Ervik</LI>
 <LI>Robin Davies (Windows DS and ASIO)</LI>
+<LI>Marcelo Fernandez</LI>
+<LI>Taylor Holberton</LI>
 <LI>Martin Koegler</LI>
 <LI>Dmitry Kostjuchenko</LI>
 <LI>Oliver Larkin</LI>
+<LI>Jakob Leben</LI>
 <LI>Antoine Lefebvre</LI>
 <LI>Carlos Luna</LI>
+<LI>Connor MacDonald</LI>
+<LI>Jasper Mackenzie</LI>
 <LI>Dominic Mazzoni</LI>
 <LI>Tristan Matthews</LI>
 <LI>Peter Meerwald (PulseAudio)</LI>
+<LI>Jaromir Mike&scaron;</LI>
+<LI>rehans</LI>
+<LI>Sebastian Reimers</LI>
+<LI>Ryan Schmidt</LI>
 <LI>Benjamin Schroeder</LI>
+<LI>sonoro1234</LI>
+<LI>terminator356</LI>
+<LI>Marcus Tomlinson (WASAPI)</LI>
 <LI>Ryan Williams (Windows non-MS compiler ASIO support)</LI>
 <LI>Ed Wildgoose (Linux ALSA and Jack)</LI>
+<LI>Serge Zaitsev</LI>
+<LI>Iohannes Zm&ouml;lnig</LI>
 
 </UL>
 
diff --git a/doc/doxygen/footer.html b/doc/doxygen/footer.html
index ee47e31..0b4fcdd 100644
--- a/doc/doxygen/footer.html
+++ b/doc/doxygen/footer.html
@@ -1,7 +1,7 @@
 <HR>
 
 <table><tr><td><img src="../images/mcgill.gif" width=165></td>
-  <td>&copy;2001-2017 Gary P. Scavone, McGill University. All Rights Reserved.<br>Maintained by <a href="http://www.music.mcgill.ca/~gary/">Gary P. Scavone</a>.</td></tr>
+  <td>&copy;2001-2019 Gary P. Scavone, McGill University. All Rights Reserved.<br>Maintained by <a href="http://www.music.mcgill.ca/~gary/">Gary P. Scavone</a>.</td></tr>
 </table>
 
 </BODY>
diff --git a/doc/doxygen/license.txt b/doc/doxygen/license.txt
index 35b0212..ac93772 100644
--- a/doc/doxygen/license.txt
+++ b/doc/doxygen/license.txt
@@ -1,7 +1,7 @@
 /*! \page license License
 
     RtAudio: a set of realtime audio i/o C++ classes<BR>
-    Copyright (c) 2001-2017 Gary P. Scavone
+    Copyright (c) 2001-2019 Gary P. Scavone
 
     Permission is hereby granted, free of charge, to any person
     obtaining a copy of this software and associated documentation files
diff --git a/doc/doxygen/probe.txt b/doc/doxygen/probe.txt
index a7901e9..471b91c 100644
--- a/doc/doxygen/probe.txt
+++ b/doc/doxygen/probe.txt
@@ -66,6 +66,8 @@ The \c nativeFormats member of the RtAudio::DeviceInfo structure is a bit mask o
 
 Some audio devices may require a minimum channel value greater than one.  RtAudio will provide automatic channel number compensation when the number of channels set by the user is less than that required by the device.  Channel compensation is <I>NOT</I> possible when the number of channels set by the user is greater than that supported by the device.
 
-It should be noted that the capabilities reported by a device driver or underlying audio API are not always accurate and/or may be dependent on a combination of device settings.  For this reason, RtAudio does not rely on the queried values when attempting to open a stream.
+Note that the device enumeration is system specific and will change if any devices are plugged or unplugged by the user. Thus, the device numbers should be verified immediately before opening a stream. As well, if a user unplugs a device while an open stream is using that device, the resulting stream behaviour will be undefined (a system error will likely be generated).
+
+Also, the capabilities reported by a device driver or underlying audio API are not always accurate and/or may be dependent on a combination of device settings.  For this reason, RtAudio does not rely on the queried values when attempting to open a stream.
 
 */
diff --git a/doc/doxygen/tutorial.txt b/doc/doxygen/tutorial.txt
index 8ec8330..9a914b9 100644
--- a/doc/doxygen/tutorial.txt
+++ b/doc/doxygen/tutorial.txt
@@ -13,18 +13,21 @@ RtAudio is a set of C++ classes that provide a common API (Application Programmi
 
 RtAudio incorporates the concept of audio streams, which represent audio output (playback) and/or input (recording).  Available audio devices and their capabilities can be enumerated and then specified when opening a stream.  Where applicable, multiple API support can be compiled and a particular API specified when creating an RtAudio instance.  See the \ref apinotes section for information specific to each of the supported audio APIs.
 
-\section whatsnew Latest Updates (Version 5.0.0)
+\section whatsnew Latest Updates (Version 5.1.0)
 
-The version number has been bumped to 5.0.0 because of the past API change concerning the renaming of the RtError class to RtAudioError.  Changes in this release include:
+Changes in this release include:
 
-- WASAPI updates (thanks to Marcus Tomlinson)
-- minor exception semantic changes
+- new C API wrapper
+- new functions to get API names
+- many WASAPI updates (thanks to Marcus Tomlinson)
 - miscellaneous build system updates
+- bug fix for stream ticking in CoreAudio if using two devices for duplex
+- ALSA stream handle bug fixes
 - see git history for complete list of changes
 
 \section download Download
 
-Latest Release (30 August 2017): <A href="http://www.music.mcgill.ca/~gary/rtaudio/release/rtaudio-5.0.0.tar.gz">Version 5.0.0</A>
+Latest Release (17 April 2019): <A href="http://www.music.mcgill.ca/~gary/rtaudio/release/rtaudio-5.1.0.tar.gz">Version 5.1.0</A>
 
 \section documentation Documentation Links
 
diff --git a/doc/release.txt b/doc/release.txt
index c8ef594..f3c3d93 100644
--- a/doc/release.txt
+++ b/doc/release.txt
@@ -1,6 +1,15 @@
 RtAudio - a set of C++ classes that provide a common API for realtime audio input/output across Linux (native ALSA, JACK, PulseAudio, and OSS), Macintosh OS X (CoreAudio and JACK), and Windows (DirectSound, ASIO and WASAPI) operating systems.
 
-By Gary P. Scavone, 2001-2017.
+By Gary P. Scavone, 2001-2019.
+
+v.5.1.0: (17 April 2019)
+- see git history for complete list of changes
+- many WASAPI updates (thanks to Marcus Tomlinson)
+- miscellaneous build system updates
+- bug fix for stream ticking in OS-X if using two devices for duplex
+- ALSA stream handle bug fixes
+- new C API wrapper
+- new functions to get API names
 
 v5.0.0: (30 August 2017)
 - see git history for complete list of changes