diff --git a/editions/prerelease/tiddlers/Release 5.1.9.tid b/editions/prerelease/tiddlers/Release 5.1.9.tid
new file mode 100644
index 000000000..5f9c74e7a
--- /dev/null
+++ b/editions/prerelease/tiddlers/Release 5.1.9.tid	
@@ -0,0 +1,37 @@
+caption: 5.1.9
+created: 20150418163307227
+modified: 20150418163307227
+tags: ReleaseNotes
+title: Release 5.1.9
+type: text/vnd.tiddlywiki
+
+//[[See GitHub for detailed change history of this release|https://github.com/Jermolene/TiddlyWiki5/compare/v5.1.8...v5.1.9]]//
+
+
+!! Translation Improvements
+
+* 
+
+!! Usability Improvements
+
+* 
+
+!! Hackability Improvements
+
+* 
+
+!! Bug Fixes
+
+* 
+
+!! Node.js Changes
+
+//These changes are only relevant to those using TiddlyWiki under Node.js//
+
+* 
+
+!! Contributors
+
+[[@Jermolene|https://github.com/Jermolene]] would like to thank the contributors to this release who have generously given their time to help improve TiddlyWiki:
+
+* [[@felixhayashi|https://github.com/felixhayashi]]
diff --git a/editions/tw5.com/tiddlers/releasenotes/Release 5.1.8.tid b/editions/tw5.com/tiddlers/releasenotes/Release 5.1.8.tid
index c48f6f156..647b87787 100644
--- a/editions/tw5.com/tiddlers/releasenotes/Release 5.1.8.tid	
+++ b/editions/tw5.com/tiddlers/releasenotes/Release 5.1.8.tid	
@@ -4,6 +4,7 @@ modified: 20150417163307227
 tags: ReleaseNotes
 title: Release 5.1.8
 type: text/vnd.tiddlywiki
+released: 2015041716307227
 
 //[[See GitHub for detailed change history of this release|https://github.com/Jermolene/TiddlyWiki5/compare/v5.1.7...v5.1.8]]//
 
diff --git a/package.json b/package.json
index 664210c8e..4005776f4 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "tiddlywiki",
   "preferGlobal": "true",
-  "version": "5.1.8",
+  "version": "5.1.9-prerelease",
   "author": "Jeremy Ruston <jeremy@jermolene.com>",
   "description": "a non-linear personal web notebook",
   "contributors": [