2.1 GA

⭐ New Features

Outbox

• Support for event outbox via Namastack #1517
• Support for externalizing events via JobRunr #1637
• Support for application module testing in combination with Boot's slice test support #1573
• Avoid executing Flyway migrations for modules without any migrations #1684

EPR

• Allow opting out of event publication registry handling for an @TransactionalEventListener #1630
• Enable JDBC event publication schema creation by default #1563
• Make sure that JDBC EPR schema initialization runs after Boot's file-based one #1568

Testing

• Open up PublishedEvents and Scenario to see events from all threads by default #1564

Observability

• Streamline observability infrastructure #1567
• Split up observability support into API and core artifact #1559

Moments

• Allow Moments' events to be (de)serialized by Jackson #1569

💡 Improvements

Core

• Prefer @SpringBootApplication on explicitly declared classes in @ModuleSlicing #1644
• Allow FormattableType to also abbreviate non-module types #1566

Outbox

• Require RabbitMQ publisher confirmation for outbox-based externalization #1727
• Block for externalization in outbox mode #1687
• Improve transaction handling in JobRunr integration #1655

EPR

• Switch to SHA-256 for event hashing in Neo4jEventPublicationRepository #1718
• Simplify default status assignment in JpaEventPublication #1703
• Unify event externalization infrastructure #1642
• Add details about the refined event publication lifecycle to the reference documentation #1593
• Avoid recreation of TransactionalEventListeners in PersistentApplicationEventMulticaster #1632
• Hibernate schema validation fails with JPA event publication registry #1543

JUnit Extension

• Allow skipping all tests if no changes are detected #1438

APT

• SpringModulithProcessor fails on Windows with KAPT - StringIndexOutOfBoundsException due to hardcoded forward slashes #1544

Moments

• Make MomentsJacksonModule a package protected type to allow AOT configuration creation #1596
• Allow resetting the shift in TimeMachine #1490

Misc

• Fix typo in Javadoc of ApplicationModules #1686
• Fixing links to reference documentation in README #1532
• Remove deprecations #1525
• Fix a typo in the runtime docs #1512

🪲 Bugs

• Avoid ConcurrentModificationException in ModuleEntryInterceptor #1719
• Primitive types break FormattableType #1713
• Application-module-aware Flyway migrations not activated when Boot's slice test annotations are used #1706
• Fix JPA event publication delete batching to bind each batch #1701
• JpaEventPublicationAdapter returns incorrect status #1683
• Caching of TransactionalEventListeners breaks evaluation of conditions on @TransactionalEventListener methods #1654
• JdbcEventPublicationRepository deletes currently processing publication #1652
• Improve batch handling in DefaultEventpublicationRegistry.processFailedPublications(…) #1650
• Incorrect parameters in documentation for staleness of event publications of resubmitted event publications #1647
• Package-based named interfaces not properly merged #1598
• Fix incorrect EventPublication.Status reference in ….staleness.published metadata #1582
• Contributions made ApplicationModuleSourceFactory not fully considered in ApplicationModules #1554
• Architecturally-evident type discovery tries to look up repository metadata for implementation classes #1541
• JpaEventPublicationRepository.markCompleted(event, identifier, completionDate) doesn't update status to COMPLETED #1521
• CGLib proxy created for JdbcEventPublicationRepositoryV2causing issues in native image #1518
• incompleteEventPublications.resubmitIncompletePublicationsOlderThan throws NPE when last_resubmission_date is null #1516
• @ApplicationModuleTest does not bootstrap beans from test configuration #1489

🔨 Dependency Upgrades

• Upgrade to Spring Boot 4.1 #1740
• Upgrade to Spring Framework 7.0.8 #1736
• Upgrade to jMolecules 2025.0.2 #1534
• Upgrade to ArchUnit 1.4.2 #1657
• Upgrade to Namastack Outbox 1.7 #1737
• Upgrade to JobRunr 8.6.1 #1722
• Upgrade to MongoDB 5.8 #1738
• Upgrade to Micrometer Tracing 1.7 #1735
• Upgrade to jGit 7.7 #1739
• Upgrade to JSON Unit AssertJ 5.1.2 #1723
• Upgrade to Lombok 1.18.46 #1660
• Upgrade to Testcontainers 2.0.5 #1659

❤️ Contributors

Thank you to all the contributors who worked on this release:

@NeatGuyCoding, @patbaumgartner, @pramoth, @rolandbeisel, and @SAY-5