Bump version to 5.12.1

lib/jasmine-core/jasmine.js

@@ -11791,5 +11791,5 @@ getJasmineRequireObj().UserContext = function(j$) {
 };
 
 getJasmineRequireObj().version = function() {
-  return '5.12.0';
+  return '5.12.1';
 };

package.json

@@ -1,7 +1,7 @@
 {
   "name": "jasmine-core",
   "license": "MIT",
-  "version": "5.12.0",
+  "version": "5.12.1",
   "repository": {
     "type": "git",
     "url": "https://github.com/jasmine/jasmine.git"

release_notes/5.12.1.md

@@ -0,0 +1,29 @@
+Jasmine Core 5.12.0 Release Notes
+
+## Bug fixes
+
+* Fix custom matchers in top-level specs
+  * Merges [#2088](https://github.com/jasmine/jasmine/pull/2088) from @bonkevin
+
+## Supported environments
+
+This version has been tested in the following environments.
+
+| Environment | Supported versions             |
+|-------------|--------------------------------|
+| Node        | 18.20.5**, 20, 22, 24          |
+| Safari      | 16**, 17**                     |
+| Chrome      | 141*                           |
+| Firefox     | 102**, 115**, 128**, 140, 144* |
+| Edge        | 141*                           |
+
+\* Evergreen browser. Each version of Jasmine is tested against the latest
+version available at release time.<br>
+\** Supported on a best-effort basis. Support for these versions may be dropped
+if it becomes impractical, and bugs affecting only these versions may not be
+treated as release blockers.
+
+
+------
+
+_Release Notes generated with _[Anchorman](http://github.com/infews/anchorman)_