anchor.diff:  * The `EventConditions.nestedContainer()` method in the Engine Test Kit now correctly
     handles events from multiple levels of nested classes.
   
  -==== Deprecations and Breaking Changes
  -
  -* ❓
  -
   ==== New Features and Improvements
   
   * `TestExecutionSummary.Failure` is now serializable.
  
positive.code: [[release-notes-5.6.0-RC1-junit-vintage]]
  === JUnit Vintage
  
  ==== Bug Fixes
  
  * ❓
  
  ==== Deprecations and Breaking Changes
  
  * ❓
  
  ==== New Features and Improvements
  
  * To support adoption of the recent JUnit 4.13 release, the Vintage engine now requires
  
negative.code: 
  * When `@Nested` is used, the temporary directory is now also injected into instance
    fields of enclosing classes annotated with `@TempDir`.
  
  ==== New Features and Improvements
  
  