Bump version to 5.5.0

release_notes/5.5.0.md

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+# Jasmine Core 5.5.0 Release Notes
+
+## Changes
+
+* Optionally enforce uniqueness of spec and suite names
+
+  This is off by default for backwards compatibility but can be enabled
+  by setting the `forbidDuplicateNames` env config property to true.
+  Fixes [#1633](https://github.com/jasmine/jasmine/issues/1633).
+
+* Include property value mismatches in diffs even when there are missing or 
+  extra properties
+
+## Supported environments
+
+This version has been tested in the following environments.
+
+| Environment       | Supported versions      |
+|-------------------|-------------------------|
+| Node              | 18, 20, 22              |
+| Safari            | 15-17                   |
+| Chrome            | 131*                    |
+| Firefox           | 102**, 115**, 128, 132* |
+| Edge              | 131*                    |
+
+\* 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)_