Simplex Noise v2.0 (UE 5.7)

• Fixed: 4D noise out-of-bounds read — PermutationTable[256] was accessed when a grid corner index reached 255 + 1. All lookups now route through Hash() which wraps via uint8 cast, matching the 1D / 2D / 3D behavior
• Fixed: Internal functions were marked constexpr but read from thread_local storage, which is not a constant expression.
• Fixed: Mixed float-suffix literals (0.5f, 0.6f) in double functions
• Fixed: checkf() macro inside what was previously a constexpr function
• Added: C++ batch API (SimplexNoise1D/2D/3D/4D_Batch, SimplexNoise2D_FBM_Batch)
• Added: AVX + FMA SIMD kernel for the 2D batch path (Clang x86-64, runtime dispatch, no project-wide flags required)
• Added: BiomeDioramaActor example content
• Added: Per-thread seeding documentation and thread_local clarification in comments

Simplex Noise v1.3.0 UE 5.5

Fix gradients, improve comments/formatting, add validation, update pe…

Simplex Noise v1.3.0 UE 5.4

Fix missing FMath::Max<double>