I'd like to announce the availability of Spring Modulith 0.5.1. The release primarily contains an important bug fix (the spring-modulith-runtime module accidentally contained a Logback configuration file only intended for test usage) and the usual upgrade to the latest Spring Boot version. Find more information in the full changelog, as well as reference documentation.

In case you are wondering about what the project is all about, Voxxed Days Zurich have published "Spring Modulith – Spring for Architecturally Curious Developers":

I am excited to announce the releases of versions 1.5.4, 2.0.3 and 2.1 M1 of Spring HATEOAS. The bug fix releases primarily ship dependency upgrades, including one to the latest Spring Framework 5 and 6 releases which include fixes for a CVE. The 2.1 milestone includes a couple of new features, such as:

• Property metadata for forms now also considers JSR-03's @Size annotation – #1920
• Introduction of SlicedModel, a simplified version of PagedModel to navigate slices but not calculate a total – #1856

For more information, please check out the full changelogs on GitHub.

I am excited to announce the availability of Spring Modulith 0.5. The most relevant features the release ships are:

• #152 – A dedicated starter to ease inclusion of actuator and observability features
• #163 – The renamed property to trigger JDBC database initialization. (spring.modulith.events.schema-initialization.enabled -> spring.modulith.events.jdbc-schema-initialization.enabled)
• #149 – Default to await termination of task executors unless configured not to
• #150 – Scenario should run stimulus in new transaction
• #162, #154 – The usual dependency upgrades (Spring Boot 3.0.4, jMolecules 2022.2.4)
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"If it's fun, do it more often" or so they say. Unfortunately, the just announced 0.4 release of Spring Modulith shipped a tiny glitch we could fix rather quickly, to immediately issue a 0.4.1 one. We were also able to sneak in an additional dependency upgrade to the just released jMolecules 2022.2.3.

Find a complete change log in the GitHub release page. We are looking forward to your feedback in the GitHub discussions.

Dear Spring community, I am excited to announce the release of Spring Modulith 0.4. The release ships with the following new features:

• A new Scenario API to allow the concise definition of integration tests for application modules, specifically tailored around the idea of them integrating via asynchronously handled, transaction bound events.
• A new starter that allows to pull in the runtime support in a concise way, primarily to ease the usage of ApplicationModuleInitializers (GH-132).
• The event publication registry now returns uncompleted events in ascending order of their publication dates (GH-133) and provides better logging (GH-125).
• A few tiny optimizations in our documentation generation support, especially if the UML style is for component diagrams (GH-130, GH-140, GH-141…

Hot on the heels of Spring Boot 3.0.2, I am excited to announce the 0.3 release of Spring Modulith. The release is packed with improvements. We have tweaked a couple of things that might require your attention and a couple of adapting changes to your code. The most notable changes are:

• GH-114 – We renamed the ….modulith.model package to ….modulith.core. This primarily affects ApplicationModules. Please adapt your imports accordingly.

• GH-120 – The documentation support now generates diagram files using the *.puml file extension, as suggested by PlantUML. Please adapt your imports accordingly.

• GH-103 – ApplicationModuleInitializer implementations will be triggered upon application startup, in the order following the application module dependency structure (more core ones are invoked first). Also, ApplicationModules exposes a ….getComparator() to order Spring beans that way. Note, that this requires the JGraphT library to be on the classpath (automatically pulled in via the spring-modulith-runtime artifact). See the reference documentation for details.

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I am pleased to announce the availability of Spring Modulith 0.2. The release adds the following features:

• We introduced @ApplicationModuleListener to ease the declaration of asynchronous, transactional event listeners that run in a transaction themselves. A model that we recommend as default to integration application modules. (#80, reference documentation)
• The application module dependency structure is now also exposed as Spring Boot actuator. This allows operating infrastructure to visualize insights it provides to operations teams to be aligned with the application module structure (HTTP traces by module etc.) (#87, reference documentation
• The Postgres event publication registry schema now follows Postgres best practices. (#81…

Hot on the heels of Spring Boot 3.0 GA, it's my pleasure to announce the availability of Spring Modulith 0.1. The release concludes the integration of the Moduliths project into the Spring ecosystem. I want to especially thank Dmitry Belyaev and Björn Kieling who helped a lot during the migration and contributed significant new features to the project, the event publication repository implementations for JDBC and MongoDB in particular.

For a general introduction into the project, please check out the original announcement and this InfoQ article.

Changelog | Reference documentation

I am pleased to announce the first and final release candidate of Spring Modulith 0.1. The release primarily is a preparation for the GA one to follow Spring Boot 3.0 GA some time next week. That said, we managed to sneak a couple of improvements into the Application Module Canvas that will surely be helpful. The Canvas now lists Spring bean references into other modules explicitly and thus documents the required interface of the module, just like constructor arguments describe the dependencies of a class.

Figure 1. Spring bean references in the Application Module Canvas

Also, the Canvas now includes value types exposed by a module. These types are identified by either the annotations or interfaces provided by the jMolecules DDD library…

I am pleased to announce the availability of the second milestone of Spring Modulith 0.1. The release contains a few minor bug fixes and a couple of community contributions to the reference documentation. Find a complete overview about the changes included in the release here. For a general introduction into the project, please consult the announcing blog post.

The current plan is to ship an 0.1 RC1 after Spring Boot’s second RC, followed by a GA version on the heels of Boot’s GA.