diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7e1182b84..495d7f9d5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,8 +46,8 @@ set ( PACKAGE "fluidsynth" )
 
 # FluidSynth package version
 set ( FLUIDSYNTH_VERSION_MAJOR 2 )
-set ( FLUIDSYNTH_VERSION_MINOR 3 )
-set ( FLUIDSYNTH_VERSION_MICRO 7 )
+set ( FLUIDSYNTH_VERSION_MINOR 4 )
+set ( FLUIDSYNTH_VERSION_MICRO 0 )
 set ( VERSION "${FLUIDSYNTH_VERSION_MAJOR}.${FLUIDSYNTH_VERSION_MINOR}.${FLUIDSYNTH_VERSION_MICRO}" )
 set ( FLUIDSYNTH_VERSION "\"${VERSION}\"" )
 
@@ -61,8 +61,8 @@ set ( FLUIDSYNTH_VERSION "\"${VERSION}\"" )
 # if any interfaces have been removed/changed (compatibility broken): AGE=0
 # This is not exactly the same algorithm as the libtool one, but the results are the same.
 set ( LIB_VERSION_CURRENT 3 )
-set ( LIB_VERSION_AGE 2 )
-set ( LIB_VERSION_REVISION 5 )
+set ( LIB_VERSION_AGE 3 )
+set ( LIB_VERSION_REVISION 0 )
 set ( LIB_VERSION_INFO
       "${LIB_VERSION_CURRENT}.${LIB_VERSION_AGE}.${LIB_VERSION_REVISION}" )
 
diff --git a/doc/fluidsynth-v20-devdoc.txt b/doc/fluidsynth-v20-devdoc.txt
index 6f844ddaf..37470b0c8 100644
--- a/doc/fluidsynth-v20-devdoc.txt
+++ b/doc/fluidsynth-v20-devdoc.txt
@@ -1,5 +1,5 @@
 /*!
-\mainpage FluidSynth 2.3 Developer Documentation
+\mainpage FluidSynth 2.4 Developer Documentation
 \author Peter Hanappe
 \author Conrad Berhörster
 \author Antoine Schmitt
@@ -8,8 +8,8 @@
 \author David Henningsson
 \author Tom Moebert
 \author Copyright © 2003-2024 Peter Hanappe, Conrad Berhörster, Antoine Schmitt, Pedro López-Cabanillas, Josh Green, David Henningsson, Tom Moebert
-\version Revision 2.3.7
-\date 2024-10-20
+\version Revision 2.4.0
+\date 2024-10-31
 
 All the source code examples in this document are in the public domain; you can use them as you please. This document is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported License. To view a copy of this license, visit https://creativecommons.org/licenses/by-sa/3.0/ . The FluidSynth library is distributed under the GNU Lesser General Public License. A copy of the GNU Lesser General Public License is contained in the FluidSynth package; if not, visit https://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt or write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.