First JDK aligned release. Previously known as Helidon SE.
Virtual Thread based. Includes Helidon SE and Helidon MP.
Non-blocking & reactive, implemented on top of Netty. Includes Helidon SE and Helidon MP.
Build Model Context Protocol servers and tools in Java.
Add AI services, agents, and RAG to Helidon applications.
Integrate Helidon applications with Oracle Cloud Infrastructure through OCI SDK v3.
Connect Helidon applications to Apache Kafka.
Connect Helidon applications to Apache Pulsar.
Connect Helidon applications to Jakarta Messaging providers.
Connect Helidon applications to legacy javax.jms messaging providers.
Register and discover Helidon services with Netflix Eureka.
Access HashiCorp Vault secrets and authentication from Helidon applications.
Generate Helidon SE declarative server code from OpenAPI 3 specifications.
Serve an interactive OpenAPI browser UI from Helidon applications.
Provide Helidon hooks for coordinated JVM checkpoint and restore.
Parse TOML and load application/toml sources through Helidon Config.
Add Gson-backed JSON media support to Helidon SE WebServer.
Configure Neo4j drivers and health checks for Helidon applications.
Netty based. Includes Helidon SE and Helidon MP. EOL since June 2025.
Netty based. Includes Helidon SE and Helidon MP. EOL since February 2022.