I wanted to know if Hazelcast 3.12.12 supports RHEL 8? From documentation, I can see that Hazelcast version 4 and 5 supports RHEL 8. But, I could not get any information on Hazelcast version 3. Can you please let me know if Hazelcast version 3 can be deployed on RHEL 8?
Yes, the RHEL 8 is supported, but the Hazelcast 3.12.z itself has already reached its End-of-Life. Check the Version Support Windows page. It's highly recommended to use a supported version!
That said, the only requirement is to have a supported Java version installed. It would be Java 8 or Java 11 for Hazelcast 3.12.z.
Check details in the documentation: https://docs.hazelcast.com/imdg/3.12/getting-started/supported-jvms