Open Liberty

What it does

Audience

The product is presented for Java developers building cloud-native applications and microservices.checked 29 Sep 2026

Authentication

The MicroProfile JWT feature can authenticate users with JSON Web Tokens and supports role-based access controls.checked 29 Sep 2026

Deployment

Open Liberty can be containerized and deployed to Kubernetes clouds.checked 29 Sep 2026

Developer mode

Dev mode provides automated testing, debugger support, and handles compiling, packaging, and deploying during development.checked 29 Sep 2026

Developer tools

Liberty Tools supports Eclipse IDE, Visual Studio Code, and IntelliJ IDEA, with code completion, hover descriptions, and configuration diagnostics.checked 29 Sep 2026

Download channels

The download page offers stable, beta, and nightly builds; it notes that nightly builds may be unstable and beta content can change.checked 29 Sep 2026

Integrations

The site lists Jenkins, Spring, Docker, Grafana, Gradle, Logstash, Prometheus, Maven, Kubernetes, Kibana, and Elasticsearch integrations.checked 29 Sep 2026

Java standards

It supports MicroProfile and Jakarta EE features that can be added or removed as needed.checked 29 Sep 2026

Observability

The site describes tracing services, gathering metrics, configuring alerts, and consolidating and analyzing logs.checked 29 Sep 2026

Purpose

Open Liberty is a lightweight open framework for building cloud-native Java microservices.checked 29 Sep 2026

Release verification

The download page says release packages can be checked for authenticity and integrity using provided signature and certificate files.checked 29 Sep 2026

Startup and memory

The runtime starts quickly, has a low memory footprint, and supports live reload.checked 29 Sep 2026

Support

Community support is available, and IBM offers paid support that includes dedicated help, 24x7 help for business-critical issues, fixes for previous releases, and case support online, by chat, or by phone.checked 29 Sep 2026

Upgrade compatibility

Its zero-migration design aims to let existing applications and configurations work across runtime updates, with documented exceptions including security fixes and third-party API requirements.checked 29 Sep 2026