OpenCL 3.0.11 adds two new extensions and continues the regular release cadence for specification bug fixes and clarifications. The cl_khr_subgroup_rotate extension enables an OpenCL kernel to rotate values among work-items in a subgroup for increased data exchange efficiency in many algorithms. The cl_khr_work_group_uniform_arithmetic extension enables an OpenCL kernel to use new work-group scan and reduction operators which can boost the performance of many use cases—and is ideal to accelerate C++ scan and reduction functions in SYCL 2020 implementations targeting OpenCL as a backend.