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36 lines
1.6 KiB
Markdown
36 lines
1.6 KiB
Markdown
# Versioning
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## API
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ONNX Runtime follows [Semantic Versioning 2.0](https://semver.org/) for its public API.
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Each release has the form MAJOR.MINOR.PATCH. The meanings of MAJOR, MINOR and PATCH are
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same as what is described in the semantic versioning doc linked above.
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### ABI
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Please refer to the [ABI doc](ABI.md) for more details about binary compatibility.
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## Current stable release version
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The version number of the current stable release can be found
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[here](../VERSION_NUMBER)
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## Release cadence
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See [docs/ReleaseManagement.md](ReleaseManagement.md)
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## Compatibility with ONNX opsets
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ONNX Runtime supports both backwards and forward compatibility.
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### Backwards compatibility
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All versions of ONNX Runtime will support ONNX opsets all the way back to (and including) opset version 7.
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In other words if an ONNX Runtime release implements ONNX opset ver 9, it'll be able to run all
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models that are stamped with ONNX opset verions in the range [7-9].
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### Forward compatibility
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A release version that supports opset ver 8 will be able to run all models that are stamped with opset ver 9 provided
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the model doesn't use ops that were newly introduced in opset ver 9.
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### Version matrix
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Following table summarizes the relationship between the ONNX Runtime version and the ONNX
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opset version implemented in that release.
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| ONNX Runtime release version | ONNX opset version <br> implemented in this release | ONNX ML opset version <br> implemented in this release | Supported ONNX IR version |
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|------------------------------|--------------------|----------------------|------------------|
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| 0.1.4 | 8 | 1 | 3 |
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