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+# Jasmine Core 6.0.0-alpha.1 Release Notes
+
+This is a pre-release, intended to offer a preview of breaking changes and to
+solicit feedback.
+
+## A Note About Pre-Release Compatibility
+
+There may be additional breaking changes in future 6.0 pre-releases or in the
+final 6.0 release. That's allowed by the semver specification, but users are
+sometimes unpleasantly surprised by it.
+
+NPM's implementation of carat version ranges assumes that subsequent
+pre-releases and final releases are fully compatible with earlier pre-releases.
+If your package.json contains `"jasmine-core": "^6.0.0-alpha.1`,
+NPM might install any later 6.x version even though there is no guarantee of
+compatibility. If that isn't ok, you should specify an exact pre-release version:
+`"jasmine-core": "6.0.0-alpha.1`.
+
+
+## Breaking changes
+
+### Changes that affect reporters
+
+* Irrelevant properties such as `status` and `failedExpectations` are omitted
+  from [the event passed to suiteStarted](https://jasmine.github.io/api/6.0.0-alpha.1/global.html#SuiteStartedEvent).
+
+  This change should be compatible with most existing reporters but could break 
+  reporters that manage their internal state in unusual ways. Please 
+  [open an issue](https://github.com/jasmine/jasmine/issues/new?template=bug_report.yml)
+  if you find a published reporter package that works with jasmine-core 5.x but
+  not with this release.
+
+### Changes that affect browser boot files
+
+* The `createElement` and `createTextNode` options of `HtmlReporter` are ignored.
+  `HtmlReporter` now unconditionally uses `document.createElement` and
+  `document.createTextNode`.
+
+### Changes that affect spec writing
+
+* HTML reporters cache configuration throughout each run. Configuration changes
+  made while specs are running will not affect reporter behavior.
+* Global error spies always receive a single argument. Previously, the browser
+  error event was passed as the second argument.
+
+## New features
+
+* A new `HtmlReporterV2` with several improvements over the old `HtmlReporter`:
+  * Clicking a spec/suite link does exact filtering rather than a substring 
+    match.
+  * The old dots are replaced with a progress bar. This improves usability with
+    large suites and fixes an accessibility problem.
+  * Details of failed specs are displayed as soon as each spec finishes.
+  * Initialization and wire-up in boot files are much simpler.
+  
+  If you're using jasmine-browser-runner or copying boot1.js from the standalone
+  distribution, you'll automatically get the new reporter. If you maintain your
+  own boot files, you'll get the old reporter unless you update your boot1.js
+  to match the one that's in this package. 
+
+  The new reporter produces `spec` query string parameters that are different
+  from those created by the old reporter. If you use non-Jasmine software that
+  interprets the `spec` parameter, such as karma-jasmine, you may not be able to
+  adopt `HtmlReporterV2` unlesss it's updated.
+* Use `globalThis` to determine the global object during initialization
+  This makes jasmine-core more tolerant of buggy bundlers or loaders that
+  cause `this` to be undefined in the global context.
+
+
+## Deprecations
+
+* Warn if jasmine-core is loaded as an ES module in a browser.
+  This is an untested and unsupported configuration that has been known to cause
+  problems in the past.
+* Deprecated `HtmlReporter` and `HtmlSpecFilter` in favor of `HtmlReporterV2`.
+
+
+## Documentation improvements
+
+* Improved API reference documentation for APIs that are used from browser boot
+  files.
+
+
+## Internal improvements
+
+* Removed remaining code that supported suite re-entry.
+* Encapsulated suite and spec result and status management.
+* Adopted strict mode throughout the codebase.
+* Decomposed `HtmlReporter` into components and converted to ES6 classes.
+* Made global error handling more uniform between browsers and Node.
+
+
+## Supported environments
+
+This version has been tested in the following environments.
+
+| Environment       | Supported versions             |
+|-------------------|--------------------------------|
+| Node              | 20, 22, 24                     |
+| Safari            | 16**, 17**                     |
+| Chrome            | 141*                           |
+| Firefox           | 102**, 115**, 128**, 140, 143* |
+| 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)_