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Zero initialize OrtEpFactory in provider bridge EP factories - #33117

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Edward Chen (edgchen1) merged 2 commits into
microsoft:mainfrom
maxim-davgalev:ep-factory-zero-init
Oct 16, 2026
Merged

Edward Chen (edgchen1) merged 2 commits into
microsoft:mainfrom
maxim-davgalev:ep-factory-zero-init

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@maxim-davgalev

@maxim-davgalev maxim-davgalev commented Oct 5, 2026 •

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Description

Zero initialize the OrtEpFactory base in the CUDA, QNN, MIGraphX, VitisAI, TensorRT RTX, and OpenVINO factories. Previously, unassigned callback pointers were left uninitialized and could pass ORT's null checks, leading to calls through invalid pointers.

Set ort_version_supported in CudaEpFactory as well.

Document in OrtEp, OrtEpFactory, OrtKernelImpl, and OrtEpProfilerImpl that some callbacks are optional and unimplemented callbacks must be set to NULL.

Copilot AI balanced review requested due to automatic review settings October 5, 2026 22:12
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Warning

Copilot couldn't run its full agentic review because it didn't start before the timeout. Make sure your repository has a runner available, or add a copilot-code-review.yml file specifying one with the runs-on attribute. See the docs for more details.

Copilot review overview

Review effort: Lite
Findings: 2 Medium severity

Open (2)
What changed in this PR

This PR prevents execution provider factory callbacks from being invoked through uninitialized (garbage) function pointers by ensuring OrtEpFactory bases are value-initialized across multiple provider bridge factories, and by adding OpenVINO plugin stubs for unsupported CreateEp calls.

Changes:

  • Value-initialize (OrtEpFactory{}) EP factory bases in CUDA, QNN, MIGraphX, VitisAI, TensorRT RTX, and OpenVINO factories.
  • Set ort_version_supported in CudaEpFactory.
  • Add OpenVINO CreateEp/ReleaseEp stub implementations so unsupported paths return an error instead of calling a null/uninitialized callback.
File Description
onnxruntime/​core/​providers/​vitisai/​vitisai_provider_factory.cc Value-initialize OrtEpFactory base to ensure callbacks start null.
onnxruntime/​core/​providers/​qnn/​qnn_provider_factory.cc Value-initialize OrtEpFactory base to ensure callbacks start null.
onnxruntime/​core/​providers/​openvino/​ov_factory.h Add CreateEp/ReleaseEp stubs to return an error on unsupported plugin path.
onnxruntime/​core/​providers/​openvino/​ov_factory.cc Value-initialize OrtEpFactory base and wire CreateEp/ReleaseEp callbacks.
onnxruntime/​core/​providers/​nv_tensorrt_rtx/​nv_provider_factory.cc Value-initialize OrtEpFactory base to ensure callbacks start null.
onnxruntime/​core/​providers/​migraphx/​migraphx_provider_factory.cc Value-initialize OrtEpFactory base to ensure callbacks start null.
onnxruntime/​core/​providers/​cuda/​cuda_provider_factory.cc Value-initialize OrtEpFactory base and set ort_version_supported.
include/​onnxruntime/​core/​session/​onnxruntime_ep_c_api.h Document required zero-initialization for OrtEp/OrtEpFactory implementers.

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Copilot review overview

🟢 Approval recommended

The changes consistently eliminate uninitialized callback pointers without altering the public ABI.

Review effort: Balanced
Findings: None

Resolved since last review (2)

Zero initialize the OrtEpFactory base in the CUDA, QNN, MIGraphX,
VitisAI, TensorRT RTX, and OpenVINO factories. Previously, unassigned
callback pointers were left uninitialized and could pass ORT's null
checks, leading to calls through invalid pointers.

Set ort_version_supported in CudaEpFactory as well. Add OpenVINO
CreateEp/ReleaseEp stubs so unsupported CreateEp calls return an error
instead of calling a null pointer.
@maxim-davgalev

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The three failing checks (Python format, Suggest fixes, Analyze (java)) failed during tool setup, before any lint or analysis ran: "Setup Rust" in the two lint jobs and "Setup Java 17" ("Could not load manifest for Microsoft Build of OpenJDK") in CodeQL. lintrunner --all-files passes locally on this commit.

@maxim-davgalev
maxim-davgalev requested a balanced review from Copilot October 7, 2026 16:00

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Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.

@maxim-davgalev

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Hi Edward Chen (@edgchen1), would you be able to review this PR? I would also like to ask a few questions about the process:

  1. What is the preferred way to get a review on this project: should contributors ask reviewers directly, or wait until someone picks up the PR?
  2. Copilot left a comment saying that it was unable to review this pull request because the user who requested the review has reached their quota limit. What is the quota for contributors, and is it per PR, per day, or per month?
  3. Three CI checks failed during tool setup because they could not find or load some components. Something similar happened on my previous PR. These failures are unrelated to the changes and seem to happen regularly. What is the preferred way to handle such cases?
  4. Who should I contact about Windows ML issues?

Thank you!

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🟢 Approval recommended

The changes consistently eliminate uninitialized callbacks without introducing ABI or behavioral regressions.

0 open findings

🧠 Review effort: Balanced

@edgchen1

Edward Chen (edgchen1) commented Oct 15, 2026 •

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  1. What is the preferred way to get a review on this project: should contributors ask reviewers directly, or wait until someone picks up the PR?

it's fine to tag folks for review. sorry for the delay, we are kind of overloaded at the moment.

  1. Copilot left a comment saying that it was unable to review this pull request because the user who requested the review has reached their quota limit. What is the quota for contributors, and is it per PR, per day, or per month?

I'm not sure what the quota is. maintainers can request a Copilot review too, so I wouldn't worry about it too much.

  1. Three CI checks failed during tool setup because they could not find or load some components. Something similar happened on my previous PR. These failures are unrelated to the changes and seem to happen regularly. What is the preferred way to handle such cases?

CI builds are flaky sometimes. a maintainer can re-run the builds in such cases.

  1. Who should I contact about Windows ML issues?

please file an issue at https://github.com/microsoft/WindowsML

Document that unimplemented callback pointers in OrtEp, OrtEpFactory,
OrtKernelImpl, and OrtEpProfilerImpl must be set to NULL.

Remove the unused OpenVINO CreateEp/ReleaseEp stubs. OpenVINO creates
EPs through the provider bridge and does not use these callbacks.

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🟡 Changes recommended

The promised OpenVINO stubs are missing, leaving unsupported CreateEp calls to invoke a null callback.

1 open finding

🧠 Review effort: Balanced

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🟢 Approval recommended

The narrowly scoped initialization fixes preserve existing callback assignments and public ABI, with no unresolved findings.

0 open findings

1 resolved since last review

🧠 Review effort: Balanced

@maxim-davgalev

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  1. What is the preferred way to get a review on this project: should contributors ask reviewers directly, or wait until someone picks up the PR?

it's fine to tag folks for review. sorry for the delay, we are kind of overloaded at the moment.

  1. Copilot left a comment saying that it was unable to review this pull request because the user who requested the review has reached their quota limit. What is the quota for contributors, and is it per PR, per day, or per month?

I'm not sure what the quota is. maintainers can request a Copilot review too, so I wouldn't worry about it too much.

  1. Three CI checks failed during tool setup because they could not find or load some components. Something similar happened on my previous PR. These failures are unrelated to the changes and seem to happen regularly. What is the preferred way to handle such cases?

CI builds are flaky sometimes. a maintainer can re-run the builds in such cases.

  1. Who should I contact about Windows ML issues?

please file an issue at https://github.com/microsoft/WindowsML

@edgchen1
Edward Chen (edgchen1) merged commit e88538c into microsoft:main Oct 16, 2026
@edgchen1

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thanks for the PR!

Franklin Moormann (ooples) pushed a commit to ooples/AiDotNet that referenced this pull request Nov 13, 2026
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
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of the ignore conditions of the specified dependency
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</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Franklin Moormann (ooples) pushed a commit to ooples/AiDotNet that referenced this pull request Nov 14, 2026
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>

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