R8in and R8ib instances join the M8in/M8ib family in reaching GA, extending the 6th-generation Nitro-backed lineup into memory-optimized territory. These instances are purpose-built for workloads that require large memory footprints alongside high network bandwidth, including SAP HANA deployments, real-time in-memory analytics, and large-scale caching tiers. Organizations running SAP HANA or comparable in-memory platforms on older R-family instances now have a supported upgrade path that combines expanded memory capacity with the networking throughput improvements introduced in the 8th-generation Nitro stack. Teams should review AWS regional availability before committing to migration timelines.