# Jasmine Core 5.3.0 Release Notes

## Changes

* Improved performance in Safari
  * Merges [#2040](https://github.com/jasmine/jasmine/pull/2040) from @dcsaszar
  * Fixes [#2008](https://github.com/jasmine/jasmine/issues/2008)

* Improved performance in Playwright Webkit on Windows
  * Merges [#2034](https://github.com/jasmine/jasmine/pull/2034) from @m-akinc

* Throw if spying has no effect, as when spying on localStorage methods in Firefox and Safari 17
    * See [#2036](https://github.com/jasmine/jasmine/issues/2036) and [#2007](https://github.com/jasmine/jasmine/issues/2007)


## Documentation improvements

* Added API reference for reporter capabilities

## Supported environments

This version has been tested in the following environments.

| Environment       | Supported versions |
|-------------------|--------------------|
| Node              | 18, 20, 22         |
| Safari            | 15-17              |
| Chrome            | 128                |
| Firefox           | 102, 115, 130      |
| Edge              | 128                |


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_Release Notes generated with _[Anchorman](http://github.com/infews/anchorman)_