According to https://www.gridgain.com/resources/blog/whats-new-in-gridgain-9, GridGain 9 is more than an upgrade – it’s a significant leap forward for the Unified Real-Time Data Platform. It is as thorough improvement over GridGain 8 as Apache Ignite 3 is over Apache Ignite 2. https://ignite.apache.org/docs/3.0.0-beta/ shows that Apache Ignite 3 has many new features which are available in GridGain 9 as well.