diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0e72aedb7..ca92b4c9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,8 @@
 miniSphere Changelog
 ====================
 
-v5.2.1 - TBD
-------------
+v5.2.1 - April 29, 2018
+-----------------------
 
 * Adds a warning to Sphere v1 Cell builds for which the main script has a
   `.mjs` extension, since it will not run as module code.
diff --git a/README.md b/README.md
index 51478bc37..dada78e8d 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 5.2.0**, released on Friday, April 27, 2018.  miniSphere
+**miniSphere 5.2.1**, released on Sunday, April 29, 2018.  miniSphere
 binaries are provided through GitHub, and the latest version is always
 available for download here:
 
diff --git a/VERSION b/VERSION
index 7cbea073b..804440660 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-5.2.0
\ No newline at end of file
+5.2.1
\ No newline at end of file
diff --git a/manpages/cell.1 b/manpages/cell.1
index 5f4bc737b..b29e26a4f 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 "2018-04-29" "miniSphere-5.2.1" "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..84195b1a5 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 "2018-04-29" "miniSphere-5.2.1" "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..6fc5e9ca3 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 "2018-04-29" "miniSphere-5.2.1" "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..a0404ce7e 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 "2018-04-29" "miniSphere-5.2.1" "Sphere Game Development Kit"
 .SH NAME
 ssj \- the JavaScript debugger for miniSphere
 .SH SYNOPSIS
diff --git a/msvs/cell.rc b/msvs/cell.rc
index 82abb7161..0bb743756 100644
Binary files a/msvs/cell.rc and b/msvs/cell.rc differ
diff --git a/msvs/minisphere.rc b/msvs/minisphere.rc
index cea6eecc3..e7d1ea372 100644
Binary files a/msvs/minisphere.rc and b/msvs/minisphere.rc differ
diff --git a/msvs/ssj.rc b/msvs/ssj.rc
index d84bb91a1..7d9df2ffe 100644
Binary files a/msvs/ssj.rc and b/msvs/ssj.rc differ
diff --git a/setup/minisphere.iss b/setup/minisphere.iss
index 8569e97ee..80ec46244 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 "5.2.1"
 
 ; to create a bundle with Sphere Studio, copy the Sphere Studio binaries
 ; into msw/ide/ before building the installer.
diff --git a/src/plugin/Properties/AssemblyInfo.cs b/src/plugin/Properties/AssemblyInfo.cs
index 43610abf5..d26ae5d8c 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("5.2.1.2824")]
+[assembly: AssemblyFileVersion("5.2.1.2824")]
diff --git a/src/shared/version.h b/src/shared/version.h
index 494cdb50b..58c09d22b 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 "5.2.1"
 
 #define SPHERE_API_VERSION      2
 #define SPHERE_API_LEVEL        2