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NumPy 2.x Compliance

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•Last updated Sep 7, 2026

Achieve full behavioral compatibility with NumPy 2.x (targeting 2.4.2+).

Key areas:

Type promotion (NEP 50)
API cleanup (NEP 52)
Array API standard (NEP 56)
Scalar handling
Broadcasting semantics
Indexing behavior
Core NumPy API coverage

Reference: NumPy source at src/numpy/ (v2.4.2)

64% complete

[NEP50 Core] Type promotion diverges from NumPy 2.x NEP 50 for unsigned int array + signed int scalar
SciSharp/NumSharp#529 · opened on Feb 8, 2026 · NumPy 2.x Compliance
2
[NEP50 NEP52 NEP56] NumPy 2.0 Breaking Changes
SciSharp/NumSharp#547 · opened on Feb 13, 2026 · NumPy 2.x Compliance
[Goal] Support Andrej Karpathy's microgpt.py
SciSharp/NumSharp#540 · opened on Feb 13, 2026 · NumPy 2.x Compliance
1
[Types] Add complex64 support
SciSharp/NumSharp#569 · opened on Feb 14, 2026 · NumPy 2.x Compliance
[Types] Add datetime64 support
SciSharp/NumSharp#570 · opened on Feb 14, 2026 · NumPy 2.x Compliance
[Types] Add timedelta64 support
SciSharp/NumSharp#571 · opened on Feb 14, 2026 · NumPy 2.x Compliance
Performance: Replace heap allocations with stackalloc in 74+ hot paths
SciSharp/NumSharp#575 · opened on Feb 21, 2026 · NumPy 2.x Compliance
2
[Goal] LinearRegression: Near-Identical Python→C# Translation
SciSharp/NumSharp#580 · opened on Feb 21, 2026 · NumPy 2.x Compliance
[Core] NumPy String support in NumSharp
SciSharp/NumSharp#592 · opened on Mar 18, 2026 · NumPy 2.x Compliance
2