diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index d1a065d0..aa7ebdc5 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -10999,5 +10999,5 @@ getJasmineRequireObj().UserContext = function(j$) {
 };
 
 getJasmineRequireObj().version = function() {
-  return '5.3.0';
+  return '5.4.0';
 };
diff --git a/package.json b/package.json
index c2a7f96a..8508f171 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "jasmine-core",
   "license": "MIT",
-  "version": "5.3.0",
+  "version": "5.4.0",
   "repository": {
     "type": "git",
     "url": "https://github.com/jasmine/jasmine.git"
diff --git a/release_notes/5.4.0.md b/release_notes/5.4.0.md
new file mode 100644
index 00000000..9fa4502c
--- /dev/null
+++ b/release_notes/5.4.0.md
@@ -0,0 +1,39 @@
+# Jasmine Core 5.4.0 Release Notes
+
+## Changes
+
+* Fixed de-duplication of exception messages containing blank lines on Node and Chrome
+
+  This is particularly helpful when reporting testing-library errors, which
+  have messages that contain blank lines and can be hundreds or even thousands
+  of lines long.
+
+* Document that the expected and actual properties of expectation results are deprecated
+
+  The values of these properties are not reliable in configurations where 
+  reporter messages are JSON serialized. They appear to have been seldom if ever 
+  used. They will be removed in the next major release. 
+
+* Added Firefox 128 (current ESR) to supported browsers
+
+## Supported environments
+
+This version has been tested in the following environments.
+
+| Environment       | Supported versions      |
+|-------------------|-------------------------|
+| Node              | 18, 20, 22              |
+| Safari            | 15-17                   |
+| Chrome            | 129*                    |
+| Firefox           | 102**, 115**, 128, 131* |
+| Edge              | 129*                    |
+
+\* Evergreen browser. Each version of Jasmine is tested against the latest
+version available at release time.<br>
+\** Environments that are past end of life are supported on a best-effort basis.
+They may be dropped in a future minor release of Jasmine if continued support
+becomes impractical.
+
+------
+
+_Release Notes generated with _[Anchorman](http://github.com/infews/anchorman)_