diff --git a/bin/build-site.sh b/bin/build-site.sh
index fa402c204..f1859e139 100755
--- a/bin/build-site.sh
+++ b/bin/build-site.sh
@@ -5,7 +5,7 @@
 # Default to the current version number for building the plugin library
 
 if [  -z "$TW5_BUILD_VERSION" ]; then
-    TW5_BUILD_VERSION=v5.3.8
+    TW5_BUILD_VERSION=v5.4.0
 fi
 
 echo "Using TW5_BUILD_VERSION as [$TW5_BUILD_VERSION]"
diff --git a/core/wiki/config/OfficialPluginLibrary.tid b/core/wiki/config/OfficialPluginLibrary.tid
index 0373f3208..bb55927a3 100644
--- a/core/wiki/config/OfficialPluginLibrary.tid
+++ b/core/wiki/config/OfficialPluginLibrary.tid
@@ -1,6 +1,6 @@
 title: $:/config/OfficialPluginLibrary
 tags: $:/tags/PluginLibrary
-url: https://tiddlywiki.com/library/v5.3.8/index.html
+url: https://tiddlywiki.com/library/v5.4.0/index.html
 caption: {{$:/language/OfficialPluginLibrary}}
 
 {{$:/language/OfficialPluginLibrary/Hint}}
diff --git a/editions/prerelease/tiddlers/Release 5.4.0.tid b/editions/prerelease/tiddlers/Release 5.4.0.tid
new file mode 100644
index 000000000..c5f73b97d
--- /dev/null
+++ b/editions/prerelease/tiddlers/Release 5.4.0.tid	
@@ -0,0 +1,62 @@
+caption: 5.4.0
+created: 20250807084952911
+modified: 20250807084952911
+tags: ReleaseNotes
+title: Release 5.4.0
+type: text/vnd.tiddlywiki
+description: Under development
+
+//[[See GitHub for detailed change history of this release|https://github.com/TiddlyWiki/TiddlyWiki5/compare/v5.3.8...master]]//
+
+
+
+! New Features
+
+-
+
+! Translation improvements
+
+*
+
+! Plugin Improvements
+
+* 
+
+! Widget Improvements
+
+* 
+
+! Usability Improvements
+
+*
+
+! Palette Improvements
+
+*
+
+! Hackability Improvements
+
+*
+
+! Bug Fixes
+
+*
+
+! Node.js Improvements
+
+* 
+
+! Performance Improvements
+
+* 
+
+! Developer 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:
+
+<<.contributors """
+""">>
\ No newline at end of file
diff --git a/editions/prerelease/tiddlers/system/PrereleaseLocalPluginLibrary.tid b/editions/prerelease/tiddlers/system/PrereleaseLocalPluginLibrary.tid
index 0ad81e302..bc2c62e1e 100644
--- a/editions/prerelease/tiddlers/system/PrereleaseLocalPluginLibrary.tid
+++ b/editions/prerelease/tiddlers/system/PrereleaseLocalPluginLibrary.tid
@@ -1,6 +1,6 @@
 title: $:/config/LocalPluginLibrary
 tags: $:/tags/PluginLibrary
-url: http://127.0.0.1:8080/prerelease/library/v5.3.7/index.html
+url: http://127.0.0.1:8080/prerelease/library/v5.4.0/index.html
 caption: {{$:/language/OfficialPluginLibrary}} (Prerelease Local)
 
 A locally installed version of the official ~TiddlyWiki plugin library at tiddlywiki.com for testing and debugging. //Requires a local web server to share the library//
diff --git a/editions/prerelease/tiddlers/system/PrereleaseOfficialPluginLibrary.tid b/editions/prerelease/tiddlers/system/PrereleaseOfficialPluginLibrary.tid
index 6c29d03af..1ca7cbdb8 100644
--- a/editions/prerelease/tiddlers/system/PrereleaseOfficialPluginLibrary.tid
+++ b/editions/prerelease/tiddlers/system/PrereleaseOfficialPluginLibrary.tid
@@ -1,6 +1,6 @@
 title: $:/config/OfficialPluginLibrary
 tags: $:/tags/PluginLibrary
-url: https://tiddlywiki.com/prerelease/library/v5.3.8/index.html
+url: https://tiddlywiki.com/prerelease/library/v5.4.0/index.html
 caption: {{$:/language/OfficialPluginLibrary}} (Prerelease)
 
 The prerelease version of the official ~TiddlyWiki plugin library at tiddlywiki.com. Plugins, themes and language packs are maintained by the core team.
diff --git a/editions/tw5.com/tiddlers/images/New Release Banner.png b/editions/tw5.com/tiddlers/images/New Release Banner.png
index b1f77b189..7c2cb16c2 100644
Binary files a/editions/tw5.com/tiddlers/images/New Release Banner.png and b/editions/tw5.com/tiddlers/images/New Release Banner.png differ
diff --git a/package.json b/package.json
index bd02267a9..fb499d299 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "tiddlywiki",
   "preferGlobal": true,
-  "version": "5.3.8",
+  "version": "5.4.0-prerelease",
   "author": "Jeremy Ruston <jeremy@jermolene.com>",
   "description": "a non-linear personal web notebook",
   "contributors": [