diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc62eb78b..ce27d4486 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,8 @@
 miniSphere Changelog
 ====================
 
-v5.2.3 - TBD
-------------
+v5.2.3 - May 4, 2018
+--------------------
 
 * Adds a warning when a Cell build produces any output files named `index.mjs`
   and targets API level 1.
diff --git a/README.md b/README.md
index 15c8c8ae1..f383a1df2 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ Download
 ========
 
 The latest stable miniSphere release at the time of this writing is
-**miniSphere 5.2.2**, released on Tuesday, May 1, 2018.  miniSphere
+**miniSphere 5.2.3**, released on Friday, May 4, 2018.  miniSphere
 binaries are provided through GitHub, and the latest version is always
 available for download here:
 
diff --git a/VERSION b/VERSION
index bf5606571..fff6bf312 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-X.X.X
\ No newline at end of file
+5.2.3
\ No newline at end of file
diff --git a/manpages/cell.1 b/manpages/cell.1
index 5f4bc737b..68f16fac2 100644
--- a/manpages/cell.1
+++ b/manpages/cell.1
@@ -1,4 +1,4 @@
-.TH CELL 1 "xxxx-xx-xx" "miniSphere-X.X.X" "Sphere Game Development Kit"
+.TH CELL 1 "2018-05-04" "miniSphere-5.2.3" "Sphere Game Development Kit"
 .SH NAME
 cell \- Sphere v2 game compiler and packager
 .SH SYNOPSIS
diff --git a/manpages/minisphere.1 b/manpages/minisphere.1
index fb6ea2903..d9ed7aaab 100644
--- a/manpages/minisphere.1
+++ b/manpages/minisphere.1
@@ -1,4 +1,4 @@
-.TH MINISPHERE 1 "xxxx-xx-xx" "miniSphere-X.X.X" "miniSphere JS Game Engine"
+.TH MINISPHERE 1 "2018-05-04" "miniSphere-5.2.3" "miniSphere JS Game Engine"
 .SH NAME
 minisphere \- lightweight JavaScript-powered game engine
 .SH SYNOPSIS
diff --git a/manpages/spherun.1 b/manpages/spherun.1
index 3ed7082b4..e2a1c62bd 100644
--- a/manpages/spherun.1
+++ b/manpages/spherun.1
@@ -1,4 +1,4 @@
-.TH SPHERUN 1 "xxxx-xx-xx" "miniSphere-X.X.X" "Sphere Game Development Kit"
+.TH SPHERUN 1 "2018-05-04" "miniSphere-5.2.3" "Sphere Game Development Kit"
 .SH NAME
 spherun \- run a Sphere game in a dev-friendly environment
 .SH SYNOPSIS
diff --git a/manpages/ssj.1 b/manpages/ssj.1
index 94380e2cf..632e962fa 100644
--- a/manpages/ssj.1
+++ b/manpages/ssj.1
@@ -1,4 +1,4 @@
-.TH SSJ 1 "xxxx-xx-xx" "miniSphere-X.X.X" "Sphere Game Development Kit"
+.TH SSJ 1 "2018-05-04" "miniSphere-5.2.3" "Sphere Game Development Kit"
 .SH NAME
 ssj \- the JavaScript debugger for miniSphere
 .SH SYNOPSIS
diff --git a/setup/minisphere.iss b/setup/minisphere.iss
index 8569e97ee..03b9bb85d 100644
--- a/setup/minisphere.iss
+++ b/setup/minisphere.iss
@@ -33,7 +33,7 @@
 ; solution configurations.
 #define AppName "miniSphere"
 #define AppPublisher "Fat Cerberus"
-#define AppVersion3 "X.X.X"
+#define AppVersion3 "5.2.3"
 
 ; to create a bundle with Sphere Studio, copy the Sphere Studio binaries
 ; into msw/ide/ before building the installer.
diff --git a/src/plugin/PluginMain.cs b/src/plugin/PluginMain.cs
index 556145628..9ee2efa20 100644
--- a/src/plugin/PluginMain.cs
+++ b/src/plugin/PluginMain.cs
@@ -16,7 +16,7 @@ public class PluginMain : IPluginMain
     {
         public string Name { get; } = "miniSphere Support";
         public string Description { get; } = "Supports miniSphere and the Sphere v2 toolchain.";
-        public string Version { get; } = "X.X.X";
+        public string Version { get; } = "5.2.3";
         public string Author { get; } = "Fat Cerberus";
 
         internal PluginConf Conf { get; private set; }
diff --git a/src/plugin/Properties/AssemblyInfo.cs b/src/plugin/Properties/AssemblyInfo.cs
index 43610abf5..fd1603aec 100644
--- a/src/plugin/Properties/AssemblyInfo.cs
+++ b/src/plugin/Properties/AssemblyInfo.cs
@@ -32,5 +32,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.0.0.0")]
-[assembly: AssemblyFileVersion("0.0.0.0")]
+[assembly: AssemblyVersion("5.2.3.2834")]
+[assembly: AssemblyFileVersion("5.2.3.2834")]
diff --git a/src/shared/version.h b/src/shared/version.h
index b27039a93..47e7709fa 100644
--- a/src/shared/version.h
+++ b/src/shared/version.h
@@ -37,7 +37,7 @@
 #define SPHERE_COMPILER_NAME "Cell"
 #define SPHERE_DEBUGGER_NAME "SSj"
 
-#define SPHERE_VERSION "X.X.X"
+#define SPHERE_VERSION "5.2.3"
 
 #define SPHERE_API_VERSION      2
 #define SPHERE_API_LEVEL        3