Release date for 1.0.0 is 27 Sep 2023. Pre-releases are available.
https://prometheus.github.io/client_java
See CONTRIBUTING.md and the community section of the Prometheus homepage.
The Prometheus Java community is present on the CNCF Slack on #prometheus-java, and we have a fortnightly community call in the Prometheus public calendar.
The source code for 0.16.0 and older is on the simpleclient branch.
Apache License 2.0, see LICENSE.