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6.4.2 Release notes updates post RC4 [Batch1] (#463)

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* HIP 7.0 upcoming changes blog link updated

* Changes to AMDGPU and rocPRIM update

* formating change

* Changelog update
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Pratik Basyal
2025-07-11 08:36:37 -04:00
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@@ -82,7 +82,7 @@ ROCm documentation continues to be updated to provide clearer and more comprehen
* Documentation for the new [ROCprof Compute Viewer](https://rocm.docs.amd.com/projects/rocprof-compute-viewer/en/amd-mainline/) was added in May 2025. This tool is used to visualize and analyze GPU thread trace data collected using [rocprofv3](https://rocm.docs.amd.com/projects/rocprofiler-sdk/en/latest/index.html). Note that [ROCprof Compute Viewer](https://rocm.docs.amd.com/projects/rocprof-compute-viewer/en/amd-mainline/) is in an early access state. Running production workloads is not recommended.
* The AMDGPU installer documentation has been removed to encourage the use of the package manager for ROCm installation. While the package manager is the recommended method, you can still install ROCm using the AMDGPU installer by following the [legacy process](https://rocm.docs.amd.com/projects/install-on-linux/en/docs-6.4.1/install/install-methods/amdgpu-installer-index.html). For more information, see [Installation via native package manager](https://rocm.docs.amd.com/projects/install-on-linux/en/latest/install/install-methods/package-manager-index.html).
* The AMDGPU installer documentation has been removed to encourage the use of the package manager for ROCm installation. While the package manager is the recommended method, you can still install ROCm using the AMDGPU installer by following the [legacy process](https://rocm.docs.amd.com/projects/install-on-linux/en/docs-6.4.1/install/install-methods/amdgpu-installer-index.html). Ensure to update the command with the intended ROCm version before running it. For more information, see [Installation via native package manager](https://rocm.docs.amd.com/projects/install-on-linux/en/latest/install/install-methods/package-manager-index.html).
## Operating system and hardware support changes
@@ -538,6 +538,25 @@ See the full [AMD SMI changelog](https://github.com/ROCm/amdsmi/blob/release/roc
* `rocprim::warp_size()`
* `ROCPRIM_WAVEFRONT_SIZE`
* The default scan accumulator types for device-level scan algorithms will be changed in an upcoming release, resulting in a breaking change. Previously, the default accumulator type was set to the input type for the inclusive scans and to the initial value type for the exclusive scans. This could lead to unexpected overflow if the input or initial type was smaller than the output type when the accumulator type wasn't explicitly set using the `AccType` template parameter. The new default accumulator types will be set to the type that results when the input or initial value type is applied to the scan operator.
The following is the complete list of affected functions and how their default accumulator types are changing:
* `rocprim::inclusive_scan`
* current default: `class AccType = typename std::iterator_traits<InputIterator>::value_type>`
* future default: `class AccType = rocprim::invoke_result_binary_op_t<typename std::iterator_traits<InputIterator>::value_type, BinaryFunction>`
* `rocprim::deterministic_inclusive_scan`
* current default: `class AccType = typename std::iterator_traits<InputIterator>::value_type>`
* future default: `class AccType = rocprim::invoke_result_binary_op_t<typename std::iterator_traits<InputIterator>::value_type, BinaryFunction>`
* `rocprim::exclusive_scan`
* current default: `class AccType = detail::input_type_t<InitValueType>>`
* future default: `class AccType = rocprim::invoke_result_binary_op_t<rocprim::detail::input_type_t<InitValueType>, BinaryFunction>`
* `rocprim::deterministic_exclusive_scan`
* current default: `class AccType = detail::input_type_t<InitValueType>>`
* future default: `class AccType = rocprim::invoke_result_binary_op_t<rocprim::detail::input_type_t<InitValueType>, BinaryFunction>`
* `rocprim::load_cs` and `rocprim::store_cs` are deprecated and will be removed in an upcoming release. Alternatively, you can use `rocprim::load_nontemporal` and `rocprim::store_nontemporal` to load and store values in specific conditions (like bypassing the cache) for `rocprim::thread_load` and `rocprim::thread_store`.
### **rocSHMEM** (2.0.1)
#### Resolved issues