Micronaut Framework 4.5.0 Released!

The Micronaut Foundation is pleased to announce the latest Micronaut framework release.

Enhancements to Existing Modules

Micronaut Core

• NIO domain socket support micronaut-projects/micronaut-core#10852
• New request body API micronaut-projects/micronaut-core#10781

Micronaut Data

The big features in Micronaut Data for this release are multi-tenancy via discriminator (partition key) and cursor based pagination:

• Support @IdClass and multiple @Id by @dstepanov in micronaut-projects/micronaut-data#2871
• Support discriminator multitenancy by @dstepanov in micronaut-projects/micronaut-data#2876
• Initial addition of cursored pagination for SQL by @andriy-dmytruk in micronaut-projects/micronaut-data#2884

Micronaut Servlet

Micronaut Servlet features several new enhancements:

• Support configuring minThreads and maxThreads micronaut-projects/micronaut-servlet#722
• Support Virtual Threads in Jetty & Tomcat micronaut-projects/micronaut-servlet#701
• Make servlet more flexible / support servlet annotations micronaut-projects/micronaut-servlet#702
• Support for http/2 over plaintext for Jetty & Tomcat micronaut-projects/micronaut-servlet#706
• Support MessageBodyReader/Writer abstraction in Servlet micronaut-projects/micronaut-servlet#707
• Attribute binders for ServletConfig/ServletContext micronaut-projects/micronaut-servlet#708
• allow registering other servlet container initializers micronaut-projects/micronaut-servlet#711
• Support management port in servlet micronaut-projects/micronaut-servlet#712
• Support for access log for each servlet server implementation micronaut-projects/micronaut-servlet#713

Micronaut Micrometer

Micronaut 4.5 includes several useful community contributions to the Micrometer module:

• Build more tags using method context by @hrothwell in micronaut-projects/micronaut-micrometer#753
• Add micronaut-micrometer-registry-otlp binding for micrometer-registry-otlp by @cltnschlosser in micronaut-projects/micronaut-micrometer#729
• Adding support for histograms by @lcavadas in micronaut-projects/micronaut-micrometer#740

New Modules

Micronaut JSON Schema

A new module is available for generating JSON schema definitions from classes at build time.

Micronaut SourceGen

A new SourceGen module is available for writing source generators, generating Builder classes and generating Wither classes. The goal is to provide a long term replacement for Lombok and simplify the ability to write new source generators with the Framework.

Micronaut Guice

A new Guice module is available that allows the import of existing Guice modules, simplifying migration to the Micronaut framework for Guice users.

New Features 🎉

• Adds Guice, JSON Schema and SourceGen modules by @graemerocher in #1481

Dependency updates 🚀

Please view the full changelog for a long list of dependency updates! v4.4.0...v4.5.0

If you haven’t yet updated to Micronaut framework 4, this is an excellent opportunity to do so! Please feel free to reach out to us if you need any assistance.