v0.3.0

ChenSignatures v0.3.0

Diff since v0.2.5

ChenSignatures v0.3.0

Breaking changes: None. This release is fully backward compatible. All existing APIs remain unchanged and all previous functionality is preserved.

New Features

• Batch processing: Compute signatures for multiple paths efficiently with sig(paths_3d, m; threaded=true) and logsig(paths_3d, basis; threaded=true)
• Workspace preallocation: Zero-allocation hot path with SignatureWorkspace for repeated computations
• Python wrapper enhancements:
  • Batch support with automatic multi-threading
  • Float32/Float64 dtype preservation
  • PyTorch integration improvements

Performance

• Near-linear threading speedup for batch operations
• Comprehensive benchmarking tools comparing against pySigLib

Compatibility

• Julia 1.12 support with appropriate Enzyme test skipping (experimental AD support)
• All ChainRules/Zygote, ForwardDiff, and finite difference tests pass

Documentation

• Extensive docstrings for all new functions
• Improved examples and benchmarking scripts

Merged pull requests:

• Pytest (#30) (@aleCombi)
• API improvements: workspace preallocation, docs, and validation (#31) (@aleCombi)
• Batching support and threads (#32) (@aleCombi)