In July 2026, ROCm/aiter delivered support for indexed hidden state pools in the gated delta rule prefill kernel for Triton and HIP backends. The change enables sequences to gather initial states from a shared pool and perform in-place updates, with kernel changes, API updates, and functional tests ensuring correctness across backends. Additionally, kernel work included Triton VK adjustments and HIP API order fixes. No major bugs were reported this month; the focus was on feature enablement and cross-backend reliability, delivering memory efficiency and scalability improvements for stateful sequence processing.

June 2026 ROCm/aiter monthly summary focusing on GDN performance and multi-backend kernel delivery. Delivered key kernel improvements for GDN forward paths and prefill paths across HIP, Triton, and FlyDSL backends; added bf16 support for state tensors and improved architecture compatibility. Resulted in higher throughput, reduced latency for GDN workloads, and a stronger multi-backend foundation for future hardware platforms.

April 2026 ROCm/aiter monthly summary focusing on performance optimization and maintainability for GDN prefill in qwen3_5. Delivered optimized prefill kernels, introduced support for variable-length inputs, and added autotuning and layout configuration options to improve cross-hardware performance. Implemented ssm_state vk_layout kernels for VLLM compatibility and set Triton autotune to a safe default to minimize regressions. These changes enhance throughput, broaden hardware support, and provide a clearer path for future autotuning, while maintaining code quality across the kernel surface.