[ONNX] Support Mod opset 28 by justinchuby · Pull Request #32369 · microsoft/onnxruntime

Justin Chu (justinchuby) · 2026-09-02T01:35:42Z

Summary

split CPU and CUDA Mod registrations into opsets 13-27 and 28
implement ONNX Mod-28 floating floor-mod semantics, including signed zero, infinities, NaNs, and mixed-sign operands
register DirectML's Python-compatible floor modulus for opset 28
cap QNN, CANN, MIGraphX, and OpenVINO Mod support at opset 27 so opset 28 falls back instead of advertising unverified semantics
preserve legacy behavior and harden signed integer min % -1

Stacked on #32359 / justinchuby-onnx-1-23-opset-28-base at checkpoint 92853202d4cb2bd7b9c20f1ba3abf1427980cf31.

Validation

Windows RelWithDebInfo CMake configuration completed against ONNX 1.23.0
focused floor-mod edge/reference formula validation passed
git diff --check passed
independent code review found no significant issues

A first-time local onnxruntime_test_all build was stopped after spending about an hour compiling unrelated dependencies; a provider-only compile was also gated on unfinished protobuf-generated headers. No changed-file compiler error was observed. CUDA and provider-specific builds remain for CI.

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Add native CPU and CUDA floor-mod behavior, register DirectML support, and cap uncertified EPs at opset 27 fallback. Cover mixed signs, signed zero, infinities, NaNs, zero divisors, and signed overflow. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot

🟡 Changes recommended

CUDA’s integer fmod=1 path still performs undefined INT_MIN % -1 despite the new overflow hardening.

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Pull request overview

Adds ONNX Mod opset 28 semantics while preserving prior behavior and restricting unverified execution providers.

Changes:

Adds CPU/CUDA floating floor-mod implementations and edge-case tests.
Splits registrations at opset 28 and updates DirectML support.
Prevents unsupported providers from claiming Mod-28 nodes.

File summaries

File	Description
`onnxruntime/test/providers/cpu/math/element_wise_ops_test.cc`	Adds Mod-28 semantic and overflow tests.
`onnxruntime/core/providers/qnn/builder/opbuilder/mod_op_builder.cc`	Rejects Mod-28 partitioning.
`onnxruntime/core/providers/openvino/ov_versions/data_ops.cc`	Excludes Mod-28 nodes.
`onnxruntime/core/providers/migraphx/migraphx_execution_provider.cc`	Excludes Mod-28 nodes.
`onnxruntime/core/providers/dml/OperatorAuthorHelper/OperatorVersions.h`	Defines the Mod-28 version.
`onnxruntime/core/providers/dml/DmlExecutionProvider/src/Operators/OperatorRegistration.cpp`	Registers DirectML Mod-28.
`onnxruntime/core/providers/cuda/math/binary_elementwise_ops.h`	Tracks Mod-28 floor-mod support.
`onnxruntime/core/providers/cuda/math/binary_elementwise_ops.cc`	Splits registrations and dispatches floating floor-mod.
`onnxruntime/core/providers/cuda/math/binary_elementwise_ops_impl.cu`	Instantiates floating Mod kernels.
`onnxruntime/core/providers/cuda/cuda_execution_provider.cc`	Registers versioned CUDA kernels.
`onnxruntime/core/providers/cuda/cu_inc/common.cuh`	Implements CUDA floor-mod and integer overflow handling.
`onnxruntime/core/providers/cpu/math/element_wise_ops.cc`	Implements CPU Mod-28 semantics.
`onnxruntime/core/providers/cpu/cpu_execution_provider.cc`	Registers versioned CPU kernels.
`onnxruntime/core/providers/cann/cann_graph.cc`	Excludes Mod-28 nodes.
`docs/OperatorKernels.md`	Documents updated registrations.

Review details

Files reviewed: 15/15 changed files
Comments generated: 1
Review effort level: Balanced

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om singhal (Om-singhaI) · 2026-09-07T00:07:50Z

Opset 28 is the first Mod spec whose text defines fmod=1 for integer types, and I think that makes an existing CPU precision bug newly relevant here.

BroadCastFMod computes each element as static_cast<T>(std::fmod(x, y)). For integral T both arguments promote to double, so int64 and uint64 stop being exact past 2^53. With divisor 10:

9007199254740991 -> 1   correct
9007199254740992 -> 2   correct
9007199254740993 -> 2   should be 3

uint64 18446744073709551613 % 10 gives 6 instead of 3. The same values at fmod=0 are exact, since Modulus uses x % y. CUDA _Fmod is also a % b for integers, so after this PR the CPU and CUDA paths disagree on int64 fmod=1, across two functions it touches.

Signed_integer_overflow_case_fmod covers that exact combination but only at int32, where the trip through double is lossless, so it passes either way. Routing integral T through x % y, with the same signed min guard you're adding to Modulus, would fix it, and an int64 dividend above 2^53 in that test would catch it.

To be clear about what I ran: I read the source at head and reproduced the numbers on the 1.23.2 wheel on CPU, where BroadCastFMod is byte identical to head. I haven't built this branch and haven't run anything on CUDA.

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G. Ramalingam (gramalingam) · 2026-10-01T19:14:28Z

Fixed integer fmod=1 precision for Mod opset 28. The CPU kernel now computes integer remainders with exact integer arithmetic instead of converting through double, which lost precision for int64/uint64 values above 2^53. The truncating remainder path also handles signed min() % -1 without evaluating the overflowing operation. Added int64 and uint64 regression tests for values above that precision boundary.

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Submit the floor-Mod correction through ORT graph descriptors so fused and standalone kernels are initialized correctly. Preserve broadcast input strides and select literal signed zeros. Add GPU-only float32 and float16 broadcast regressions covering both graph-fusion modes with CPU fallback disabled. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

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Copilot review overview

Review effort: Lite
Findings: 3 · 1

Open (4)

The Mod type list omits tensor(int64)/tensor(uint64), but this PR adds opset 28 Mod tests for… · New
Rejecting opset 28 via ProcessInputs may be treated as a hard failure during EP graph building… · New
The verifier checks only the sign bit for indices 0–3, but doesn’t assert the values are actually… · New
The error message is ambiguous/grammatically confusing (“can support … starting in opset 28”) for… · New

Resolved since last review (1)

The new overflow guard only protects the floor-mod path. Integer fmod=1 is supported (see the…

### Description  Reintegrate the ONNX 1.23 base plumbing originally introduced by #32359 and reverted by #33073, now using ONNX **1.23.2**. - Coordinate source/submodule, FetchContent, vcpkg, and Python dependency pins and raise the relevant opset ceilings to 28. - Restore Float6 public element-type mappings and conversion coverage, preserving subsequent independent type-support changes. - Update existing-type Cast registrations, CPU/CUDA Mod boundaries, signed BitShift support, provider compatibility, backend filters/tolerances, and operator documentation. - Materialize the removed upstream node-test corpus with exact-version and minimum-case guards, and cover backend serialization and released-opset policy. - Keep matching FetchContent/vcpkg compatibility patches; remove the released-opset correction now fixed upstream in 1.23.2. - Address review feedback: OpenVINO rejects BitShift-28; CPU/CUDA legacy SpaceToDepth kernels stop at 27; DirectML accepts only safe DCR; unverified graph providers defer SpaceToDepth-28. Full builds use ONNX function expansion for CRD, with literal-output and routing regressions. Avoid creating unsupported SpaceToDepth-28 nodes in the post-expansion Slice/Concat fusion. - Use shared ABI-safe tensor-element conversion in the native ONNX node runner, fixing INT2/UINT2/FLOAT8E8M0 corpus decoding after the main merge. ### Motivation and Context  This is a redo of #32359 after its rollback in #33073. ONNX 1.23.2 includes the external tensor read/re-save fix from onnx/onnx#8472 for onnx/onnx#8471 and the released-opset metadata fix from onnx/onnx#8544 for onnx/onnx#8529. The redundant local `LastReleaseVersionMap` patch has been removed. Remaining FetchContent/vcpkg patches are byte-identical and apply against the pinned release. **Scope:** This PR establishes dependency/runtime base integration. Full per-operator opset-28 support remains separate follow-up work; see #32362, #32369, #32372, #32378, #32381, and #32393. These references describe staged scope, not a claim that every follow-up has landed or every opset-28 operator is supported. Runtime function expansion is a full-build fallback, not minimal/ORT-format runtime coverage. ### Local validation Completed on Windows with retained CPU-only Ninja/MSVC `RelWithDebInfo` builds and strict released-opset policy: - Built `onnxruntime_provider_test`, `onnxruntime_test_all`, `onnx_test_runner`, and Python bindings against ONNX 1.23.2; retained build remains available for incremental work. - Source-built and installed the exact patched ONNX 1.23.2 Python wheel. - Separate `--minimal_build extended` shared runtime configured, compiled, and linked successfully with ML/contrib ops and unit tests disabled. This exercises `ONNX_MINIMAL_BUILD=ON`; it is not a minimal-runtime function-op execution test. - Mod/BitShift/SpaceToDepth/Cast provider tests: **247 passed**, no skips. SpaceToDepth checks default DCR, explicit DCR, and CRD with distinct literal expected outputs, expansion, and legacy opset boundaries. - Slice/Concat fusion and type-info/tensor-proto framework tests: **27 passed**, no skips. - Python backend tests: **22 passed**, plus **2 subtests passed**. - Full Python backend series: **4,066 tests**, **2,685 skipped**, zero failures. Skipped/unsupported coverage is not a pass. - Materialized **1,884 node cases**. Native CPU runner with `-m 1500` collected **1,760 cases**: **1,590 succeeded**, **170 not implemented**, **zero failed**, exit 0. These results do not establish complete opset-28 support. - Generated CPU operator documentation matches the rebuilt kernel registry; verified archive hashes, patch identity/application, submodule SHA, and changed-file lint. **Remaining validation/infrastructure limits:** GPU and other EP execution relies on CI; optional-provider routing checks are compiled into the relevant builds but were unavailable locally. Full unfiltered C++ suites and the ancillary broad `ALL` target were not rerun. The oracle-dependent corpus equivalence test skips because upstream no longer ships the corpus. The new ONNX 1.23.2 tarball currently returns **404 from the Microsoft vcpkg asset mirror**; it still needs Terrapin/infra seeding before read-only `x-block-origin` vcpkg legs can download it. FetchContent and the successful minimal build are mirror-independent. New-head CI is pending. --------- Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: gramalingam <10075881+gramalingam@users.noreply.github.com>

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Copilot

🔵 Needs a closer look

CUDA and DirectML changes still require provider-specific compilation and runtime validation.

0 open findings

4 resolved since last review

The verifier checks only the sign bit for indices 0–3, but doesn’t assert the values are actually…
Rejecting opset 28 via ProcessInputs may be treated as a hard failure during EP graph building…
The Mod type list omits tensor(int64)/tensor(uint64), but this PR adds opset 28 Mod tests for…
The error message is ambiguous/grammatically confusing (“can support … starting in opset 28”) for…

🧠 Review effort: Balanced

Updated [Microsoft.AspNetCore.Mvc.Testing](https://github.com/dotnet/dotnet) from 10.0.14 to 10.0.15. <details> <summary>Release notes</summary> _Sourced from [Microsoft.AspNetCore.Mvc.Testing's releases](https://github.com/dotnet/dotnet/releases)._ No release notes found for this version range. Commits viewable in [compare view](https://github.com/dotnet/dotnet/commits). </details> Updated [Microsoft.Data.Sqlite](https://github.com/dotnet/dotnet) from 10.0.14 to 10.0.15. <details> <summary>Release notes</summary> _Sourced from [Microsoft.Data.Sqlite's releases](https://github.com/dotnet/dotnet/releases)._ No release notes found for this version range. Commits viewable in [compare view](https://github.com/dotnet/dotnet/commits). </details> Updated [Microsoft.ML.OnnxRuntime](https://github.com/Microsoft/onnxruntime) from 1.31.1 to 1.32.0. <details> <summary>Release notes</summary> _Sourced from [Microsoft.ML.OnnxRuntime's releases](https://github.com/Microsoft/onnxruntime/releases)._ ## 1.32.0 ONNX Runtime 1.32.0 reintegrates ONNX 1.23.2 with opset 28 support, introduces CPU/GPU hybrid MoE offloading and shared-layout CPU QMoE kernels, expands device-memory, weightless-compilation, and Python model-package APIs, dramatically accelerates session initialization on large graphs, and strengthens runtime and optimizer reliability. These notes cover changes since ONNX Runtime 1.31.1. CUDA and WebGPU kernel updates are summarized here; detailed provider notes are covered by their separate plugin EP releases. ## Highlights - Reintegrated **ONNX 1.23.2** with **opset 28** operator support (`SpaceToDepth`, `Mod`, signed `BitShift`, and `BFloat16` extensions) and updated **DLPack to v1.3** across all implemented ORT numeric and boolean tensor types ([#33134](microsoft/onnxruntime#33134), [#32362](microsoft/onnxruntime#32362), [#33848](microsoft/onnxruntime#33848)). - Added a session-scoped **CPU/GPU hybrid MoE offload** planner and execution backend for quantized `QMoE` (NVFP4, INT4, INT3, and INT2) and block-packed `MoEPacked` models, backed by shared-layout AVX-512/AVX2 CPU `QMoE` kernels and memory-mapped expert storage ([#33450](microsoft/onnxruntime#33450), [#33451](microsoft/onnxruntime#33451), [#33452](microsoft/onnxruntime#33452), [#33973](microsoft/onnxruntime#33973)). - Expanded core APIs with `OrtApi::EpDevice_GetMemoryCapacity`, explicit multi-mode weightless compilation (`ModelCompilationOptions_SetWeightlessMode` and `ep.enable_weightless_mode`), Python bindings for the Model Package APIs, and zero-copy CPU buffer borrowing in `AddExternalInitializers` ([#33447](microsoft/onnxruntime#33447), [#32899](microsoft/onnxruntime#32899), [#33640](microsoft/onnxruntime#33640), [#33877](microsoft/onnxruntime#33877)). - Eliminated superlinear bottlenecks in allocation planning, constant sharing, graph I/O mapping, and topological sorting—reducing session initialization on 100k-node constant-heavy graphs from minutes to seconds—and added pipelined pinned-memory staging for external GPU weight loading ([#33407](microsoft/onnxruntime#33407), [#33939](microsoft/onnxruntime#33939), [#34009](microsoft/onnxruntime#34009), [#33839](microsoft/onnxruntime#33839)). - Expanded shared generative AI and quantized contrib operators, including Kimi Delta Attention (`GatedDeltaNet` per-key-dimension decay), right-padded chunked prefill in `GroupQueryAttention`, native GGUF/block-packed operators (`GatherPacked`, `MatMulPacked`, `MoEPacked`), and sparse-attention index sharing ([#33817](microsoft/onnxruntime#33817), [#33503](microsoft/onnxruntime#33503), [#33953](microsoft/onnxruntime#33953), [#33224](microsoft/onnxruntime#33224)). ## Announcements & Compatibility - **CUDA Plugin EP v0.4.0** and **WebGPU Plugin EP v0.6.0** are matched with ONNX Runtime 1.32.0 ([#33214](microsoft/onnxruntime#33214)). For **contrib-op compatibility**, core and the plugin must use the same contributed-operator schemas; building both from the **same ONNX Runtime revision** is recommended. Schema mismatches can cause incorrect execution or crashes and may not be detected during plugin registration. - **ACL EP removed:** Following its deprecation in 1.31.0, the Arm Compute Library (`ACLExecutionProvider`) execution provider, its build options, and its standalone C registration API have been removed. Python's `get_all_providers()` no longer lists `ACLExecutionProvider`; applications should remove it from explicit provider lists ([#33851](microsoft/onnxruntime#33851)). - **Legacy provider-bridge `NvTensorRTRTXExecutionProvider` removed:** In-tree provider-bridge `NvTensorRTRTXExecutionProvider` sources have been removed in favor of the standalone NVIDIA TensorRT RTX plugin EP registered via `OrtApi::RegisterExecutionProviderLibrary`. `NvTensorRtRtxProviderOptions` is retained as a deprecated declaration for source compatibility, and legacy `AppendExecutionProvider` calls now report a deprecation error directing callers to the plugin EP ([#32276](microsoft/onnxruntime#32276)). - **ONNX 1.23.2 integration:** ONNX has been upgraded to **1.23.2**, raising supported opset ceilings to **28** and restoring `ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT6E2M3` and `ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT6E3M2` public element-type mappings and `Cast` conversions ([#33134](microsoft/onnxruntime#33134)). - **DLPack v1.3 boolean contract change:** DLPack has been upgraded to **v1.3** with native `kDLBool` metadata and bidirectional support for all implemented ORT numeric and boolean types, including all five `float8` formats, packed `float4`, `int4`/`uint4`, and `int2`/`uint2` (`float6` remains unsupported in DLPack). The low-level `is_bool_tensor` override was removed, and `uint8` DLPack metadata now always imports as `uint8` ([#33848](microsoft/onnxruntime#33848)). - **Weightless compilation API migration:** `OrtCompileApi::ModelCompilationOptions_SetWeightlessEnabled` and the `ep.enable_weightless` / `ep.enable_weightless_ep_context_nodes` session options are deprecated in favor of `ModelCompilationOptions_SetWeightlessMode` and `ep.enable_weightless_mode` (`"0"` = `NONE`, `"1"` = `EXTERNAL_ONLY`, `"2"` = `ALL`). EPs can now advertise multi-mode capability via `OrtWeightlessSupport_ALL_OR_EXTERNAL_ONLY` and `weightless_supported_modes` ([#32899](microsoft/onnxruntime#32899)). - **Training CI retirement:** Training build and test lanes were retired from active GitHub Actions CI workflows while retaining inference build coverage ([#33836](microsoft/onnxruntime#33836)). - This is the last release for [CocoaPods](https://cocoapods.org/), and we will switch to [Swift Package Manager](https://docs.swift.org/latest/documentation/packagemanagerdocs/). - We will use combo onnxruntime-gpu python package to reduce storage size from next release. You can test it [here](https://aiinfra.visualstudio.com/PublicPackages/_artifacts/feed/ORT-Nightly/PyPI/onnxruntime-gpu/overview) ## New Features ### Core APIs & Runtime - Added `OrtApi::EpDevice_GetMemoryCapacity` (C++ `EpDevice::GetMemoryCapacity()`) and `OrtEpFactory::GetDeviceMemoryCapacity` to query device-global total memory and estimated currently available memory (`DEFAULT` or `HOST_ACCESSIBLE`), with built-in and plugin CUDA EP support ([#33447](microsoft/onnxruntime#33447)). - Expanded the app–EP weightless contract so EPs advertise all supported weightless modes (`weightless_supported_modes`), applications request an explicit mode (`ModelCompilationOptions_SetWeightlessMode` / `ep.enable_weightless_mode`), and compiled EPContext models record `weightless_mode` and `external_dependencies` (`source_model`, `external_weights`, `ep_context_binary`) in model metadata ([#32899](microsoft/onnxruntime#32899)). - Extended `session.use_external_initializer_file_buffers_directly="1"` to `AddExternalInitializers` for zero-copy borrowing of naturally aligned CPU buffers larger than 127 bytes on little-endian hosts, and documented the read-only guarantee for external initializers added via `OrtModelEditorApi::AddInitializerToGraph` with `data_is_external=true` ([#33877](microsoft/onnxruntime#33877), [#33717](microsoft/onnxruntime#33717)). - Added lock-free multi-worker pinned-memory staging (`session.external_data_loader.*`) to accelerate external initializer loading into GPU memory across built-in and plugin CUDA EPs ([#33839](microsoft/onnxruntime#33839)). - Added a session-scoped MoE/QMoE CPU/GPU offload planner and memory-budget ledger (`session.moe.offload.*`), generic `session.kernel_dispatch_policy` (`auto`, `latency`, `memory`, `safe`) configuration plumbing, Level-1 workspace/prepack memory accounting fallback for nodes absent from memory-profile CSVs, and internal capability-planning protocol types ([#33451](microsoft/onnxruntime#33451), [#33042](microsoft/onnxruntime#33042), [#33311](microsoft/onnxruntime#33311), [#33841](microsoft/onnxruntime#33841)). - Enabled cross-thread reuse of idle device streams when graph capture is disabled and providers register device-selection callbacks, and enabled compile-session profiling (`<profile_file>_compile`) in `onnxruntime_perf_test` when `-p` is used with `--compile_ep_context` ([#33053](microsoft/onnxruntime#33053), [#33694](microsoft/onnxruntime#33694)). - Made `onnxruntime_DISABLE_EXCEPTIONS` (`--disable_exceptions`) usable without `onnxruntime_MINIMAL_BUILD` and added the `onnxruntime_DISABLE_STREAM=ON` CMake option to disable device-stream support in non-minimal builds ([#33120](microsoft/onnxruntime#33120), [#33482](microsoft/onnxruntime#33482)). ### ONNX Opset 28 & Shared Contrib Operators These updates affect core ONNX and contributed operator schemas and cross-provider behavior, not only the separately released GPU plugins. - Added ONNX opset 28 operator support: native `SpaceToDepth` (`DCR` and `CRD`) on CPU and CUDA with version-split registrations across DML, JS, WebGPU, and QNN; opset-28 floating floor-modulus `Mod` on CPU, CUDA, and DML; opset-28 `BFloat16` support for `Compress`, `OneHot`, `ReverseSequence`, `Unique`, `Celu`, and `Einsum` on CPU (plus `Compress`, `OneHot`, and `ReverseSequence` on CUDA); and `BFloat16` `Pad` (opsets 21–25) on CPU and CUDA ([#32362](microsoft/onnxruntime#32362), [#32369](microsoft/onnxruntime#32369), [#32378](microsoft/onnxruntime#32378), [#34062](microsoft/onnxruntime#34062)). - Extended `GatedDeltaNet` with Kimi Delta Attention (KDA) per-key-dimension decay across CPU, CUDA, and WebGPU, and extended `GatedDeltaNet` and `CausalConvWithState` state/gate handling for multi-token speculative decoding ([#33817](microsoft/onnxruntime#33817), [#33471](microsoft/onnxruntime#33471)). - Added an optional `query_seqlens` input to `GroupQueryAttention` to skip right-padded prefill tokens and idle batch entries (`query_seqlens[b] = 0`) on CPU and CUDA, and added `q_norm_epsilon` / `k_norm_epsilon` attributes to preserve distinct Q and K normalization epsilons during GQA pre-norm fusion ([#33503](microsoft/onnxruntime#33503), [#33505](microsoft/onnxruntime#33505), [#33832](microsoft/onnxruntime#33832), [#33363](microsoft/onnxruntime#33363)). - Defined the INT3 `QMoE` v1 packed-code contract, added opt-in post-SiLU clipping (`swiglu_limit_after_activation`) and tanh-`GEGLU` (`activation_type="geglu"`) support to MoE/QMoE schemas, and added `GatherPacked` (CPU/CUDA), `MatMulPacked` (CUDA, including native Bolt `global_scale`), and `MoEPacked` (CUDA) to consume native GGUF/block-packed quantized weights directly ([#33394](microsoft/onnxruntime#33394), [#33954](microsoft/onnxruntime#33954), [#33633](microsoft/onnxruntime#33633), [#33953](microsoft/onnxruntime#33953), [#33962](microsoft/onnxruntime#33962)). - Added `PackedSparseAttentionIndexerMerge` for multi-token prediction index sharing and optional `state_status` / mid-state outputs on `PackedSparseAttentionIndexer` across CUDA and WebGPU; extended `GatedAdd` with an optional projected `gate_weight` across CPU, CUDA, and WebGPU; and supported empty unpacked weights in CPU and WebGPU `MatMulNBits` ([#33224](microsoft/onnxruntime#33224), [#33383](microsoft/onnxruntime#33383), [#33472](microsoft/onnxruntime#33472), [#33470](microsoft/onnxruntime#33470), [#33559](microsoft/onnxruntime#33559)). - Registered core contrib schemas for provider-targeted LLM and speculative-decoding operators, including `SwiGLU`, `RMSNormRotary`, `HyperConnectionLowRankMix`, `RouterGateUpProj`, `SpeculativePrefixCommit`, `GatedDeltaNetStateReplay`, `ConvStateReplay`, and `MatMulNBitsQLoRA` ([#32126](microsoft/onnxruntime#32126), [#33469](microsoft/onnxruntime#33469), [#33384](microsoft/onnxruntime#33384), [#33650](microsoft/onnxruntime#33650), [#33474](microsoft/onnxruntime#33474), [#33213](microsoft/onnxruntime#33213), [#33493](microsoft/onnxruntime#33493), [#33370](microsoft/onnxruntime#33370)). ### Plugin Execution Provider Infrastructure - Fixed an `OrtMemoryInfo` ABI mismatch across the ORT/plugin EP boundary by converting `OrtMemoryInfo` instances exclusively through the C API ([#33571](microsoft/onnxruntime#33571)). - Zero-initialized `OrtEpFactory` structs in provider-bridge EP factories so unimplemented optional callbacks are null, and prevented double DLL initialization and handle leaks when probing and registering plugin EP libraries ([#33117](microsoft/onnxruntime#33117), [#33701](microsoft/onnxruntime#33701)). - Hardened portable model-package EP recreation, custom-domain preservation, UTF-8 path handling, and `shared_assets` path confinement and symlink validation ([#32790](microsoft/onnxruntime#32790), [#33826](microsoft/onnxruntime#33826)). ... (truncated) Commits viewable in [compare view](microsoft/onnxruntime@v1.31.1...v1.32.0). </details> Updated [Microsoft.ML.OnnxRuntime.Managed](https://github.com/microsoft/onnxruntime) from 1.31.1 to 1.32.0. <details> <summary>Release notes</summary> _Sourced from [Microsoft.ML.OnnxRuntime.Managed's releases](https://github.com/microsoft/onnxruntime/releases)._ ## 1.32.0 ONNX Runtime 1.32.0 reintegrates ONNX 1.23.2 with opset 28 support, introduces CPU/GPU hybrid MoE offloading and shared-layout CPU QMoE kernels, expands device-memory, weightless-compilation, and Python model-package APIs, dramatically accelerates session initialization on large graphs, and strengthens runtime and optimizer reliability. These notes cover changes since ONNX Runtime 1.31.1. CUDA and WebGPU kernel updates are summarized here; detailed provider notes are covered by their separate plugin EP releases. ## Highlights - Reintegrated **ONNX 1.23.2** with **opset 28** operator support (`SpaceToDepth`, `Mod`, signed `BitShift`, and `BFloat16` extensions) and updated **DLPack to v1.3** across all implemented ORT numeric and boolean tensor types ([#33134](microsoft/onnxruntime#33134), [#32362](microsoft/onnxruntime#32362), [#33848](microsoft/onnxruntime#33848)). - Added a session-scoped **CPU/GPU hybrid MoE offload** planner and execution backend for quantized `QMoE` (NVFP4, INT4, INT3, and INT2) and block-packed `MoEPacked` models, backed by shared-layout AVX-512/AVX2 CPU `QMoE` kernels and memory-mapped expert storage ([#33450](microsoft/onnxruntime#33450), [#33451](microsoft/onnxruntime#33451), [#33452](microsoft/onnxruntime#33452), [#33973](microsoft/onnxruntime#33973)). - Expanded core APIs with `OrtApi::EpDevice_GetMemoryCapacity`, explicit multi-mode weightless compilation (`ModelCompilationOptions_SetWeightlessMode` and `ep.enable_weightless_mode`), Python bindings for the Model Package APIs, and zero-copy CPU buffer borrowing in `AddExternalInitializers` ([#33447](microsoft/onnxruntime#33447), [#32899](microsoft/onnxruntime#32899), [#33640](microsoft/onnxruntime#33640), [#33877](microsoft/onnxruntime#33877)). - Eliminated superlinear bottlenecks in allocation planning, constant sharing, graph I/O mapping, and topological sorting—reducing session initialization on 100k-node constant-heavy graphs from minutes to seconds—and added pipelined pinned-memory staging for external GPU weight loading ([#33407](microsoft/onnxruntime#33407), [#33939](microsoft/onnxruntime#33939), [#34009](microsoft/onnxruntime#34009), [#33839](microsoft/onnxruntime#33839)). - Expanded shared generative AI and quantized contrib operators, including Kimi Delta Attention (`GatedDeltaNet` per-key-dimension decay), right-padded chunked prefill in `GroupQueryAttention`, native GGUF/block-packed operators (`GatherPacked`, `MatMulPacked`, `MoEPacked`), and sparse-attention index sharing ([#33817](microsoft/onnxruntime#33817), [#33503](microsoft/onnxruntime#33503), [#33953](microsoft/onnxruntime#33953), [#33224](microsoft/onnxruntime#33224)). ## Announcements & Compatibility - **CUDA Plugin EP v0.4.0** and **WebGPU Plugin EP v0.6.0** are matched with ONNX Runtime 1.32.0 ([#33214](microsoft/onnxruntime#33214)). For **contrib-op compatibility**, core and the plugin must use the same contributed-operator schemas; building both from the **same ONNX Runtime revision** is recommended. Schema mismatches can cause incorrect execution or crashes and may not be detected during plugin registration. - **ACL EP removed:** Following its deprecation in 1.31.0, the Arm Compute Library (`ACLExecutionProvider`) execution provider, its build options, and its standalone C registration API have been removed. Python's `get_all_providers()` no longer lists `ACLExecutionProvider`; applications should remove it from explicit provider lists ([#33851](microsoft/onnxruntime#33851)). - **Legacy provider-bridge `NvTensorRTRTXExecutionProvider` removed:** In-tree provider-bridge `NvTensorRTRTXExecutionProvider` sources have been removed in favor of the standalone NVIDIA TensorRT RTX plugin EP registered via `OrtApi::RegisterExecutionProviderLibrary`. `NvTensorRtRtxProviderOptions` is retained as a deprecated declaration for source compatibility, and legacy `AppendExecutionProvider` calls now report a deprecation error directing callers to the plugin EP ([#32276](microsoft/onnxruntime#32276)). - **ONNX 1.23.2 integration:** ONNX has been upgraded to **1.23.2**, raising supported opset ceilings to **28** and restoring `ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT6E2M3` and `ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT6E3M2` public element-type mappings and `Cast` conversions ([#33134](microsoft/onnxruntime#33134)). - **DLPack v1.3 boolean contract change:** DLPack has been upgraded to **v1.3** with native `kDLBool` metadata and bidirectional support for all implemented ORT numeric and boolean types, including all five `float8` formats, packed `float4`, `int4`/`uint4`, and `int2`/`uint2` (`float6` remains unsupported in DLPack). The low-level `is_bool_tensor` override was removed, and `uint8` DLPack metadata now always imports as `uint8` ([#33848](microsoft/onnxruntime#33848)). - **Weightless compilation API migration:** `OrtCompileApi::ModelCompilationOptions_SetWeightlessEnabled` and the `ep.enable_weightless` / `ep.enable_weightless_ep_context_nodes` session options are deprecated in favor of `ModelCompilationOptions_SetWeightlessMode` and `ep.enable_weightless_mode` (`"0"` = `NONE`, `"1"` = `EXTERNAL_ONLY`, `"2"` = `ALL`). EPs can now advertise multi-mode capability via `OrtWeightlessSupport_ALL_OR_EXTERNAL_ONLY` and `weightless_supported_modes` ([#32899](microsoft/onnxruntime#32899)). - **Training CI retirement:** Training build and test lanes were retired from active GitHub Actions CI workflows while retaining inference build coverage ([#33836](microsoft/onnxruntime#33836)). - This is the last release for [CocoaPods](https://cocoapods.org/), and we will switch to [Swift Package Manager](https://docs.swift.org/latest/documentation/packagemanagerdocs/). - We will use combo onnxruntime-gpu python package to reduce storage size from next release. You can test it [here](https://aiinfra.visualstudio.com/PublicPackages/_artifacts/feed/ORT-Nightly/PyPI/onnxruntime-gpu/overview) ## New Features ### Core APIs & Runtime - Added `OrtApi::EpDevice_GetMemoryCapacity` (C++ `EpDevice::GetMemoryCapacity()`) and `OrtEpFactory::GetDeviceMemoryCapacity` to query device-global total memory and estimated currently available memory (`DEFAULT` or `HOST_ACCESSIBLE`), with built-in and plugin CUDA EP support ([#33447](microsoft/onnxruntime#33447)). - Expanded the app–EP weightless contract so EPs advertise all supported weightless modes (`weightless_supported_modes`), applications request an explicit mode (`ModelCompilationOptions_SetWeightlessMode` / `ep.enable_weightless_mode`), and compiled EPContext models record `weightless_mode` and `external_dependencies` (`source_model`, `external_weights`, `ep_context_binary`) in model metadata ([#32899](microsoft/onnxruntime#32899)). - Extended `session.use_external_initializer_file_buffers_directly="1"` to `AddExternalInitializers` for zero-copy borrowing of naturally aligned CPU buffers larger than 127 bytes on little-endian hosts, and documented the read-only guarantee for external initializers added via `OrtModelEditorApi::AddInitializerToGraph` with `data_is_external=true` ([#33877](microsoft/onnxruntime#33877), [#33717](microsoft/onnxruntime#33717)). - Added lock-free multi-worker pinned-memory staging (`session.external_data_loader.*`) to accelerate external initializer loading into GPU memory across built-in and plugin CUDA EPs ([#33839](microsoft/onnxruntime#33839)). - Added a session-scoped MoE/QMoE CPU/GPU offload planner and memory-budget ledger (`session.moe.offload.*`), generic `session.kernel_dispatch_policy` (`auto`, `latency`, `memory`, `safe`) configuration plumbing, Level-1 workspace/prepack memory accounting fallback for nodes absent from memory-profile CSVs, and internal capability-planning protocol types ([#33451](microsoft/onnxruntime#33451), [#33042](microsoft/onnxruntime#33042), [#33311](microsoft/onnxruntime#33311), [#33841](microsoft/onnxruntime#33841)). - Enabled cross-thread reuse of idle device streams when graph capture is disabled and providers register device-selection callbacks, and enabled compile-session profiling (`<profile_file>_compile`) in `onnxruntime_perf_test` when `-p` is used with `--compile_ep_context` ([#33053](microsoft/onnxruntime#33053), [#33694](microsoft/onnxruntime#33694)). - Made `onnxruntime_DISABLE_EXCEPTIONS` (`--disable_exceptions`) usable without `onnxruntime_MINIMAL_BUILD` and added the `onnxruntime_DISABLE_STREAM=ON` CMake option to disable device-stream support in non-minimal builds ([#33120](microsoft/onnxruntime#33120), [#33482](microsoft/onnxruntime#33482)). ### ONNX Opset 28 & Shared Contrib Operators These updates affect core ONNX and contributed operator schemas and cross-provider behavior, not only the separately released GPU plugins. - Added ONNX opset 28 operator support: native `SpaceToDepth` (`DCR` and `CRD`) on CPU and CUDA with version-split registrations across DML, JS, WebGPU, and QNN; opset-28 floating floor-modulus `Mod` on CPU, CUDA, and DML; opset-28 `BFloat16` support for `Compress`, `OneHot`, `ReverseSequence`, `Unique`, `Celu`, and `Einsum` on CPU (plus `Compress`, `OneHot`, and `ReverseSequence` on CUDA); and `BFloat16` `Pad` (opsets 21–25) on CPU and CUDA ([#32362](microsoft/onnxruntime#32362), [#32369](microsoft/onnxruntime#32369), [#32378](microsoft/onnxruntime#32378), [#34062](microsoft/onnxruntime#34062)). - Extended `GatedDeltaNet` with Kimi Delta Attention (KDA) per-key-dimension decay across CPU, CUDA, and WebGPU, and extended `GatedDeltaNet` and `CausalConvWithState` state/gate handling for multi-token speculative decoding ([#33817](microsoft/onnxruntime#33817), [#33471](microsoft/onnxruntime#33471)). - Added an optional `query_seqlens` input to `GroupQueryAttention` to skip right-padded prefill tokens and idle batch entries (`query_seqlens[b] = 0`) on CPU and CUDA, and added `q_norm_epsilon` / `k_norm_epsilon` attributes to preserve distinct Q and K normalization epsilons during GQA pre-norm fusion ([#33503](microsoft/onnxruntime#33503), [#33505](microsoft/onnxruntime#33505), [#33832](microsoft/onnxruntime#33832), [#33363](microsoft/onnxruntime#33363)). - Defined the INT3 `QMoE` v1 packed-code contract, added opt-in post-SiLU clipping (`swiglu_limit_after_activation`) and tanh-`GEGLU` (`activation_type="geglu"`) support to MoE/QMoE schemas, and added `GatherPacked` (CPU/CUDA), `MatMulPacked` (CUDA, including native Bolt `global_scale`), and `MoEPacked` (CUDA) to consume native GGUF/block-packed quantized weights directly ([#33394](microsoft/onnxruntime#33394), [#33954](microsoft/onnxruntime#33954), [#33633](microsoft/onnxruntime#33633), [#33953](microsoft/onnxruntime#33953), [#33962](microsoft/onnxruntime#33962)). - Added `PackedSparseAttentionIndexerMerge` for multi-token prediction index sharing and optional `state_status` / mid-state outputs on `PackedSparseAttentionIndexer` across CUDA and WebGPU; extended `GatedAdd` with an optional projected `gate_weight` across CPU, CUDA, and WebGPU; and supported empty unpacked weights in CPU and WebGPU `MatMulNBits` ([#33224](microsoft/onnxruntime#33224), [#33383](microsoft/onnxruntime#33383), [#33472](microsoft/onnxruntime#33472), [#33470](microsoft/onnxruntime#33470), [#33559](microsoft/onnxruntime#33559)). - Registered core contrib schemas for provider-targeted LLM and speculative-decoding operators, including `SwiGLU`, `RMSNormRotary`, `HyperConnectionLowRankMix`, `RouterGateUpProj`, `SpeculativePrefixCommit`, `GatedDeltaNetStateReplay`, `ConvStateReplay`, and `MatMulNBitsQLoRA` ([#32126](microsoft/onnxruntime#32126), [#33469](microsoft/onnxruntime#33469), [#33384](microsoft/onnxruntime#33384), [#33650](microsoft/onnxruntime#33650), [#33474](microsoft/onnxruntime#33474), [#33213](microsoft/onnxruntime#33213), [#33493](microsoft/onnxruntime#33493), [#33370](microsoft/onnxruntime#33370)). ### Plugin Execution Provider Infrastructure - Fixed an `OrtMemoryInfo` ABI mismatch across the ORT/plugin EP boundary by converting `OrtMemoryInfo` instances exclusively through the C API ([#33571](microsoft/onnxruntime#33571)). - Zero-initialized `OrtEpFactory` structs in provider-bridge EP factories so unimplemented optional callbacks are null, and prevented double DLL initialization and handle leaks when probing and registering plugin EP libraries ([#33117](microsoft/onnxruntime#33117), [#33701](microsoft/onnxruntime#33701)). - Hardened portable model-package EP recreation, custom-domain preservation, UTF-8 path handling, and `shared_assets` path confinement and symlink validation ([#32790](microsoft/onnxruntime#32790), [#33826](microsoft/onnxruntime#33826)). ... (truncated) Commits viewable in [compare view](microsoft/onnxruntime@v1.31.1...v1.32.0). </details> Updated [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 18.11.0 to 18.12.0. <details> <summary>Release notes</summary> _Sourced from [Microsoft.NET.Test.Sdk's releases](https://github.com/microsoft/vstest/releases)._ ## 18.12.0 ## Security fix This release includes the fix for CVE-2026-105544, an elevation of privilege vulnerability in the VSTest artifact post-processor. The post-processor could consume a forged `executionComplete.json` written by another local user, and then run attacker-controlled output handling. Affected: `Microsoft.TestPlatform.CLI` 18.11.0 and earlier. Every version from 18.11.1 on is fixed, including 18.12.0. `Microsoft.TestPlatform.CLI` is the VSTest build that we ship into the .NET SDK. The recommended way to get this fix is to update your .NET SDK to the latest patched version, see the advisory for the SDK versions. The fix is also released in the `Microsoft.TestPlatform.CLI` package, for completeness. That package is rarely used directly. It is not a dependency of `Microsoft.NET.Test.Sdk` or `Microsoft.TestPlatform`, so those packages do not bring it in. Details: microsoft/vstest#16654 and dotnet/announcements#517 Using custom Docker images or Nano Server? See microsoft/vstest#16652 ## What's Changed * Fix TestCaseStart/Stop events dropped for data-driven tests with shared TestCase.Id by @nohwnd in microsoft/vstest#16033 * Stop the discovery manager factory from shadowing discoveryCriteria by @nohwnd in microsoft/vstest#16391 * Gate the HTTP link checker on a fingerprint of the broken links by @nohwnd in microsoft/vstest#16413 * Quote boolean conditions in shipped Microsoft.TestPlatform.targets by @nohwnd in microsoft/vstest#16404 * Obsolete API hygiene: the compatibility-safe changes by @azat-msft in microsoft/vstest#16420 * Add xxHash128 test ids, available but not default by @azat-msft in microsoft/vstest#16378 * Isolate attachment manager test temporary files by @mmitche in microsoft/vstest#16463 * Test ids report logger by @azat-msft in microsoft/vstest#16443 * Isolate code coverage files in published output by @azat-msft in microsoft/vstest#16483 * Preserve OutputType for Android test projects by @jonathanpeppers in microsoft/vstest#16496 * Fix dotnet host resolution under proot (ARM64/Termux) by @azat-msft in microsoft/vstest#16462 * Mark the xxHash128 test id API as experimental by @azat-msft in microsoft/vstest#16465 * Ship Microsoft.Diagnostics.NETCore.Client in Microsoft.TestPlatform and Portable packages by @nohwnd in microsoft/vstest#16633 * Fix localized resource paths in CLI source-build/non-Windows packages by @nohwnd in microsoft/vstest#16644 **Full Changelog**: microsoft/vstest@v18.11.0...v18.12.0 ## 18.11.1 ## Security fix This release fixes CVE-2026-105544, an elevation of privilege vulnerability in the VSTest artifact post-processor. The post-processor could consume a forged `executionComplete.json` written by another local user, and then run attacker-controlled output handling. Affected: `Microsoft.TestPlatform.CLI` 18.11.0. Fixed in: `Microsoft.TestPlatform.CLI` 18.11.1. `Microsoft.TestPlatform.CLI` is the VSTest build that we ship into the .NET SDK. The recommended way to get this fix is to update your .NET SDK to the latest patched version, see the advisory for the SDK versions. The fix is also released in the `Microsoft.TestPlatform.CLI` package, for completeness. That package is rarely used directly. It is not a dependency of `Microsoft.NET.Test.Sdk` or `Microsoft.TestPlatform`, so those packages do not bring it in. Details: microsoft/vstest#16654 and dotnet/announcements#517 Using custom Docker images or Nano Server? See microsoft/vstest#16652 ## What's Changed * Security fix for CVE-2026-105544, see microsoft/vstest#16654 * Ship Microsoft.Diagnostics.NETCore.Client in Microsoft.TestPlatform and Portable packages by @nohwnd in microsoft/vstest#16632 * Fix localized resource paths in CLI source-build packages by @nohwnd in microsoft/vstest#16643 **Full Changelog**: microsoft/vstest@v18.11.0...v18.11.1 Commits viewable in [compare view](microsoft/vstest@v18.11.0...v18.12.0). </details> Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore <dependency name> major version` will close this group update PR and stop Dependabot creating any more for the specific dependency's major version (unless you unignore this specific dependency's major version or upgrade to it yourself) - `@dependabot ignore <dependency name> minor version` will close this group update PR and stop Dependabot creating any more for the specific dependency's minor version (unless you unignore this specific dependency's minor version or upgrade to it yourself) - `@dependabot ignore <dependency name>` will close this group update PR and stop Dependabot creating any more for the specific dependency (unless you unignore this specific dependency or upgrade to it yourself) - `@dependabot unignore <dependency name>` will remove all of the ignore conditions of the specified dependency - `@dependabot unignore <dependency name> <ignore condition>` will remove the ignore condition of the specified dependency and ignore conditions </details> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Justin Chu (justinchuby) and others added 4 commits September 1, 2026 13:02

Integrate ONNX 1.23.0 base plumbing

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Harden ONNX node corpus version checks

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Add FP6 TensorProto element sizes

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Comment thread onnxruntime/core/providers/cuda/cu_inc/common.cuh Resolved

Fix CUDA integer fmod overflow

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Base automatically changed from justinchuby-onnx-1-23-opset-28-base to main September 30, 2026 15:34

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Fix integer Mod fmod precision

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Merge origin/main into justinchuby-mod-opset-28

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Remove duplicate Mod opset 28 registrations

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Comment thread onnxruntime/core/providers/cuda/cuda_execution_provider.cc Resolved

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Fix CUDA kernel registry formatting

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Fix MSVC unreachable code warning in Mod

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Fix DirectML Mod opset 28 edge cases

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Reintegrate ONNX 1.23.2 base plumbing #33134

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Merge origin/main into justinchuby-mod-opset-28

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Address older Mod review comments

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Align Mod kernel docs with generated output

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onnxruntime 1.32.0 Homebrew/homebrew-core#325304

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[ONNX] Support Mod opset 28 - #32369

[ONNX] Support Mod opset 28#32369
G. Ramalingam (gramalingam) merged 15 commits into
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Justin Chu (justinchuby) commented Sep 2, 2026

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🟡 Changes recommended

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G. Ramalingam (gramalingam) commented Oct 1, 2026 •

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