4.5.0

This release of Helidon contains enhancements, bugfixes and dependency upgrades and is recommended for all users of Helidon 4. This release is API compatible with Helidon 4.4.

A minimum of Java 21 is required to use Helidon 4. Java 25 is recommended.

NOTABLE CHANGES

• Config: Hardened shared-secret configuration value encryption. New encrypted config values should use the ${ENC=...} format generated with the helidon-config-encryption tool; existing legacy ${GCM=...} values remain supported for compatibility.

For a list of changes please see the Helidon 4.5.0 CHANGELOG.