anchor.diff:  
   * A change to the `TempDirectory` extension in 5.4.0-RC1 made it impossible for test
     classes to have any parameters declared in their constructor if the `TempDirectory`
  -  extension was registered at the class level. This regression has been fixed.
  +  extension was registered. This regression has been fixed.
   
   ==== Deprecations and Breaking Changes
   
  -* ❓
  +* The implementation of the `TempDirectory` extension is now internal to the
  +  `JupiterTestEngine`.
  +  - Declarations of `@ExtendWith(TempDirectory.class)` will now result in a compiler
  +    error; however, explicit registration is no longer necessary since the `TempDirectory`
  +    extension is now registered automatically.
  +  - The `ParentDirProvider` and `TempDirContext` APIs and corresponding factory methods in
  +    the `TempDirectory` extension have been removed without replacement. `@TempDir` can
  +    therefore no longer be configured with a custom file system or custom parent directory.
  +  - See the <<../user-guide/index.adoc#writing-tests-built-in-extensions-TempDirectory,
  +    User Guide>> for details.
   
   ==== New Features and Improvements
   
  -* ❓
  +* `@TempDir` can now be used without the need to explicitly register the `TempDirectory`
  +  (which is now an internal implementation).
  +  - See the <<../user-guide/index.adoc#writing-tests-built-in-extensions-TempDirectory,
  +    User Guide>> for examples.
   
   
   [[release-notes-5.4.0-RC2-junit-vintage]]
   === JUnit Vintage
   
  -==== Bug Fixes
  -
  -* ❓
  -
  -==== Deprecations and Breaking Changes
  -
  -* ❓
  -
  -==== New Features and Improvements
  -
  -* ❓
  +No changes
  
positive.code: [[release-notes-5.4.0-RC2-junit-platform]]
  === JUnit Platform
  
  ==== Bug Fixes
  
  * ❓
  
  ==== Deprecations and Breaking Changes
  
  * ❓
  
  ==== New Features and Improvements
  
  * ❓
  
  
  [[release-notes-5.4.0-RC2-junit-jupiter]]
  
negative.code: 
  *Date of Release:* ❓
  
  *Scope:* Simplification of the `@TempDir` support, as well as minor improvements and bug
  fixes since 5.4.0-RC1.
  
  For a complete list of all _closed_ issues and pull requests for this release, consult the
  link:{junit5-repo}+/milestone/35?closed=1+[5.4.0-RC2] milestone page in the JUnit
  