Eclipse Vert.x 4.4.3 Release Notes: New Features, Improvements, and Bug Fixes

Eclipse Vert.x is a lightweight, high‑performance microservice framework built on the fully asynchronous Netty server, supporting multiple programming languages.

Version 4.4.3 has been released. Since the 4.4.2 release many bugs were reported, and the project team thanks the community for their contributions. The specific updates include:

vertx-jdbc-client

Fixed integration with JDBC SQL client tracing.

vertx-web

Upgraded GraphQL‑Java to version 20.3.

vertx-grpc

Added Vert.x gRPC protoc plugin.

Fixed IndexOutOfBoundsException in GrpcMethodCall.serviceName() .

Back‑ported PR #59 to the 4.x line.

Resolved additional IndexOutOfBoundsException in GrpcMethodCall .

Added missing request/response header and trailer keys.

Various other bug fixes.

Supported returning status information in trailers.

vertx-dependencies

Updated to Netty 4.1.93.Final.

vertx-hazelcast

Upgraded to Hazelcast 4.2.8.

vertx-consul-client

Added new API method for creating ACL tokens.

vertx-infinispan

Fixed InfinispanClusterManager.tryLock blocking the event loop.

vert.x (core)

Improved SSLOptions handling.

Allowed empty path for Unix socket addresses to represent unnamed addresses and fixed Netty client channel returning empty domain socket addresses.

Native transport test configuration now works on aarch64 architecture.

Introduced a generic version of the CompositeFuture static methods.

Provided a default implementation for KeyCertOptions.keyManagerMapper (issue #4700).

Clarified that KeyCertOptions.keyManagerMapper does not require implementation.

Fixed NullPointerException in HttpServer.updateSSLOptions caused by a null sslHelper .

vertx-lang-groovy

Updated Groovy to version 4.0.12 for Vert.x 4.x.

vertx-redis-client

Back‑ported testcontainers integration.

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