diff --git a/CMakeLists.txt b/CMakeLists.txt
index e4d5c4061..8070ff263 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,7 +39,7 @@ if(MUNT_EXTERNAL)
 endif()
 
 project(86Box
-    VERSION 3.11
+    VERSION 4.0
     DESCRIPTION "Emulator of x86-based systems"
     HOMEPAGE_URL "https://86box.net"
     LANGUAGES C CXX)
diff --git a/debian/changelog b/debian/changelog
index 45b701f83..1bca318dd 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,5 +1,5 @@
-86box (3.11.0-1) UNRELEASED; urgency=medium
+86box (4.0) UNRELEASED; urgency=medium
 
   * Bump release.
 
- -- Jasmine Iwanek <jriwanek@gmail.com>  Sun, 18 Nov 2022 23:27:00 -0500
+ -- Jasmine Iwanek <jriwanek@gmail.com>  Tue, 28 Feb 2023 00:02:16 -0500
diff --git a/src/include_make/86box/version.h b/src/include_make/86box/version.h
index e4792969c..96e81ce5f 100644
--- a/src/include_make/86box/version.h
+++ b/src/include_make/86box/version.h
@@ -22,11 +22,11 @@
 #define EMU_NAME    "86Box"
 #define EMU_NAME_W  LSTR(EMU_NAME)
 
-#define EMU_VERSION       "3.11"
+#define EMU_VERSION       "4.0"
 #define EMU_VERSION_W     LSTR(EMU_VERSION)
 #define EMU_VERSION_EX    "3.50" /* frozen due to IDE re-detection behavior on Windows */
-#define EMU_VERSION_MAJ   3
-#define EMU_VERSION_MIN   11
+#define EMU_VERSION_MAJ   4
+#define EMU_VERSION_MIN   0
 #define EMU_VERSION_PATCH 0
 
 #define EMU_BUILD_NUM 0
@@ -42,7 +42,7 @@
 #define EMU_ROMS_URL   "https://github.com/86Box/roms/releases/latest"
 #define EMU_ROMS_URL_W LSTR(EMU_ROMS_URL)
 #ifdef RELEASE_BUILD
-# define EMU_DOCS_URL  "https://86box.readthedocs.io/en/v3.11/"
+# define EMU_DOCS_URL  "https://86box.readthedocs.io/en/v4.0/"
 #else
 # define EMU_DOCS_URL  "https://86box.readthedocs.io"
 #endif
diff --git a/src/unix/assets/86Box.spec b/src/unix/assets/86Box.spec
index 9fac0dde4..e994ca4a7 100644
--- a/src/unix/assets/86Box.spec
+++ b/src/unix/assets/86Box.spec
@@ -15,7 +15,7 @@
 %global romver v3.11
 
 Name:		86Box
-Version:	3.11
+Version:	4.0
 Release:	1%{?dist}
 Summary:	Classic PC emulator
 License:	GPLv2+
@@ -117,5 +117,5 @@ popd
 %{_datadir}/%{name}/roms
 
 %changelog
-* Fri Nov 18 2022 Robert de Rooy <robert.de.rooy[AT]gmail.com> 3.11-1
+* Tue Feb 28 2023 Robert de Rooy <robert.de.rooy[AT]gmail.com> 4.0-1
 - Bump release
diff --git a/src/unix/assets/net.86box.86Box.metainfo.xml b/src/unix/assets/net.86box.86Box.metainfo.xml
index 3cd4b9ba2..59671d0f9 100644
--- a/src/unix/assets/net.86box.86Box.metainfo.xml
+++ b/src/unix/assets/net.86box.86Box.metainfo.xml
@@ -10,7 +10,7 @@
     </categories>
     <launchable type="desktop-id">net.86box.86Box.desktop</launchable>
     <releases>
-      <release version="3.11" date="2022-11-18"/>
+      <release version="4.0" date="2023-02-28"/>
     </releases>
     <content_rating type="oars-1.1" />
     <description>
diff --git a/vcpkg.json b/vcpkg.json
index c9fd8eceb..890aeed46 100644
--- a/vcpkg.json
+++ b/vcpkg.json
@@ -1,6 +1,6 @@
 {
     "name": "86box",
-    "version-string": "3.11",
+    "version-string": "4.0",
     "homepage": "https://86box.net/",
     "documentation": "https://86box.readthedocs.io/",
     "license": "GPL-2.0-or-later",