diff --git a/core/wiki/config/OfficialPluginLibrary.tid b/core/wiki/config/OfficialPluginLibrary.tid
index e21b3db54..d5b1a80e4 100644
--- a/core/wiki/config/OfficialPluginLibrary.tid
+++ b/core/wiki/config/OfficialPluginLibrary.tid
@@ -1,6 +1,6 @@
 title: $:/config/OfficialPluginLibrary
 tags: $:/tags/PluginLibrary
-url: https://tiddlywiki.com/library/v5.2.0/index.html
+url: https://tiddlywiki.com/library/v5.2.1/index.html
 caption: {{$:/language/OfficialPluginLibrary}}
 
 {{$:/language/OfficialPluginLibrary/Hint}}
diff --git a/editions/prerelease/tiddlers/Release 5.2.2.tid b/editions/prerelease/tiddlers/Release 5.2.2.tid
new file mode 100644
index 000000000..68be249f9
--- /dev/null
+++ b/editions/prerelease/tiddlers/Release 5.2.2.tid	
@@ -0,0 +1,54 @@
+caption: 5.2.2
+created: 20211208115905247
+modified: 20211208115905247
+tags: ReleaseNotes
+title: Release 5.2.2
+type: text/vnd.tiddlywiki
+
+\define contributor(username)
+<a href="https://github.com/$username$" style="text-decoration:none;font-size:24px;" class="tc-tiddlylink-external" target="_blank" rel="noopener noreferrer"><img src="https://github.com/$username$.png?size=32" width="32" height="32"/> @<$text text=<<__username__>>/></a>
+\end
+
+//[[See GitHub for detailed change history of this release|https://github.com/Jermolene/TiddlyWiki5/compare/v5.2.1...master]]//
+
+! Highlights
+
+* 
+
+! Bug Fixes
+
+*
+
+! Usability Improvements
+
+* 
+
+! Widget Improvements
+
+* 
+
+! Filter improvements
+
+* 
+
+! Hackability Improvements
+
+* 
+
+! Developer Improvements
+
+* 
+
+! Node.js Improvements
+
+* 
+
+! Translation improvements
+
+* 
+
+! Acknowledgements
+
+[[@Jermolene|https://github.com/Jermolene]] would like to thank the contributors to this release who have generously given their time to help improve TiddlyWiki:
+
+* <<contributor Jermolene>>
diff --git a/editions/tw5.com/tiddlers/hellothere/HelloThere.tid b/editions/tw5.com/tiddlers/hellothere/HelloThere.tid
index 3fcc1aaba..0ac644e72 100644
--- a/editions/tw5.com/tiddlers/hellothere/HelloThere.tid
+++ b/editions/tw5.com/tiddlers/hellothere/HelloThere.tid
@@ -1,6 +1,6 @@
 created: 20130822170200000
 list: [[A Gentle Guide to TiddlyWiki]] [[Discover TiddlyWiki]] [[Some of the things you can do with TiddlyWiki]] [[Ten reasons to switch to TiddlyWiki]] Examples [[What happened to the original TiddlyWiki?]] [[HelloThumbnail - TWEUM2017]]
-modified: 20211003151502543
+modified: 20211208115833846
 tags: TableOfContents
 title: HelloThere
 type: text/vnd.tiddlywiki
diff --git a/editions/prerelease/tiddlers/Release 5.2.1.tid b/editions/tw5.com/tiddlers/releasenotes/Release 5.2.1.tid
similarity index 97%
rename from editions/prerelease/tiddlers/Release 5.2.1.tid
rename to editions/tw5.com/tiddlers/releasenotes/Release 5.2.1.tid
index b27a32184..9be5341a7 100644
--- a/editions/prerelease/tiddlers/Release 5.2.1.tid	
+++ b/editions/tw5.com/tiddlers/releasenotes/Release 5.2.1.tid	
@@ -1,6 +1,7 @@
 caption: 5.2.1
-created: 20211206165748330
-modified: 20211206165748330
+created: 20211208115833846
+modified: 20211208115833846
+released: 20211208115833846
 tags: ReleaseNotes
 title: Release 5.2.1
 type: text/vnd.tiddlywiki
@@ -9,7 +10,7 @@ type: text/vnd.tiddlywiki
 <a href="https://github.com/$username$" style="text-decoration:none;font-size:24px;" class="tc-tiddlylink-external" target="_blank" rel="noopener noreferrer"><img src="https://github.com/$username$.png?size=32" width="32" height="32"/> @<$text text=<<__username__>>/></a>
 \end
 
-//[[See GitHub for detailed change history of this release|https://github.com/Jermolene/TiddlyWiki5/compare/v5.2.0...master]]//
+//[[See GitHub for detailed change history of this release|https://github.com/Jermolene/TiddlyWiki5/compare/v5.2.0...v5.2.1]]//
 
 ! Highlights