diff --git a/Doxyfile b/Doxyfile
index 67fccbf27393..7851568895bc 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = "The Battle for Wesnoth"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.15.8+dev
+PROJECT_NUMBER         = 1.15.9
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/changelog.md b/changelog.md
index 77f9117a88bd..f1529f7cc98f 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,4 +1,4 @@
-## Version 1.15.8+dev
+## Version 1.15.9
  ### Add-ons client
  ### Add-ons server
  ### Campaigns
diff --git a/projectfiles/Xcode/Info.plist b/projectfiles/Xcode/Info.plist
index f16b0ad9c93a..46beba5dc953 100644
--- a/projectfiles/Xcode/Info.plist
+++ b/projectfiles/Xcode/Info.plist
@@ -19,11 +19,11 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.15.8</string>
+	<string>1.15.9</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>1.15.8</string>
+	<string>1.15.9</string>
 	<key>LSApplicationCategoryType</key>
 	<string>public.app-category.strategy-games</string>
 	<key>NSHighResolutionCapable</key>
diff --git a/src/wesconfig.h b/src/wesconfig.h
index 538305c324c0..b3c2e05b9626 100644
--- a/src/wesconfig.h
+++ b/src/wesconfig.h
@@ -40,7 +40,7 @@
   #undef VERSION
 #endif
 
-#define VERSION "1.15.8+dev"
+#define VERSION "1.15.9"
 
 // Used for the Windows executables' version info resource.
 #define RC_VERSION_MAJOR        1