v0.5.5

What's Changed

Breaking Changes

• Create initializers not constant nodes in constant folding pass by @titaiwangms in #2650

Core ONNX Script

• Add support for traced if statements in onnxscript script by @gramalingam in #2644

Optimizer and rewriter

• Add RMS Normalization rule variant by @gramalingam in #2638
• Extend GQA fusion for Qwen by @gramalingam in #2662

Torch Lib

• Unsqueeze unbatched input of avg_pool by @wodesuck in #2646
• Support math trunc by @titaiwangms in #2653
• [torchlib] Fix concat when input tensor has shape (0,) by @justinchuby in #2661

Other Changes

• Extend GQA fusion for Gemma3 by @gramalingam in #2639
• Bump version to 0.5.5 by @titaiwangms in #2640
• Add Gemma3 GQA fusion test case by @gramalingam in #2642
• [Rewriter]: introduce remove_optional_bias by @AyoubMDL in #2635
• Add a verbose mode to torch api for external data save by @justinchuby in #2643
• [version converter] Fix DFT opset 20 by @titaiwangms in #2659
• Declare support for Python 3.14 in pyproject.toml by @justinchuby in #2663

Full Changelog: v0.5.4...v0.5.5