Enhancements

Core

Support Java 27 / class file major version 71 (#1618)
Improve descriptions of JavaAccess.Predicates.originOwner and JavaAccess.Predicates.targetOwner (#1603; thanks to @StefanGraeber 👋)
Expose information on sealed classes via JavaClass: isSealed() and getPermittedSubclasses() (#1677)
Consider dependencies from caught exceptions (#1555; thanks to @bannmann 👋)
ImportOption.DoNotIncludeTests and OnlyIncludeTests consider tests in custom Gradle source sets (#1660; thanks to @Develop-KIM 👋)

ArchConditions offers new ArchCondition<JavaClass> haveAnyDependenciesThat(DescribedPredicate<Dependency>) (#1580; thanks to @wakingrufus 👋)

ArchitectureMetrics.lakosMetrics is computed much more performantly (#1629; thanks to @ThanosTsiamis 👋)
TextFileBasedViolationStore is now thread-safe under parallel test execution (#1656; thanks to @kelunik 👋)
ModuleDependency now provides stable descriptions (#1648; thanks to @DragonFSKY 👋)

archunit-junit6 supports ArchUnit with JUnit 6 (~~#1556~~, ~~#1658~~, #1659; many thanks to @arukiidou & @schulzjo-tng 👋)
AnalyzeClasses supports individual classes (#1569; thanks to @TheManWhoStaresAtCode 👋)
Preparation: archunit-junit:0.9.0 (which was renamed with ArchUnit 0.9.0) now relocates to archunit-junit4:0.9.0 (#1673; thanks to @schulzjo-tng 👋) – will be published after #1684 🙈

Document Priority (#1671; thanks to @TheManWhoStaresAtCode 👋)
Document Package Identifiers in User Guide (#1672; thanks to @TheManWhoStaresAtCode 👋)

Text files now use UNIX line breaks (#1602, #1611; thanks to @StefanGraeber 👋)
Update Gradle from 8 to 9; build & test with JDK 25 (#1550, and also #1612, #1619)
Separate integration tests by JUnit version (#1636; many thanks to @schulzjo-tng 👋)
Replace junit-dataprovider with junit-jupiter-params (#1655)
ArchUnit releases now update Maven examples (and Gradle wrapper) of ArchUnit-Examples (#1450)
Avoid managing hamcrest dependency (#1467; thanks to @TheManWhoStaresAtCode 👋)