11 posts
OptiRS 0.3.2 is a production-hardening release: fabricated p-values, un-cancelled secure-aggregation masks, and simulated GPU latency are replaced with real implementations or explicit errors. Workspace-wide zero-warning policy, ~90 dead scaffolding types removed, 4,200+ tests passing on Pure Rust ML optimizers built on SciRS2.
OxiProj 0.1.5 is a correctness release for the EPSG authority (proj.db) coordinate path: twelve defects — from a 3.28x-oversized ellipsoid to a 380 m operation-selection miss — found and fixed against the Homebrew PROJ 9.7.0 oracle, every number measured, not derived. 2,855 tests passing, 0 failing.
OxiText 0.2.3 fixes a font-fallback bug where a single `.notdef` hit could re-point every already-shaped glyph in a run to the wrong font's glyph table — invisible whenever two fonts share glyph-id numbering. Adds a script-tag introspection API. 851 tests passing. The sovereign Pure Rust text layer for COOLJAPAN.
OxiFFT 0.4.2 fixes a wrong-answer bug (not a precision bug) in the x86_64 SSE3 SIMD butterfly kernel that every non-AVX2 x86_64 CPU takes — a wrong complex-multiply lane order and twiddle-recurrence drift together failed 93 of 1447 tests by 10-100x the tolerance. Found by running the suite on x86_64 for the first time. Plus a Miri-driven pointer-provenance fix, four new soundness hardenings against attacker-influenceable wisdom strings, and a fuzz-harness tolerance bug of its own. Pure Rust FFT, no FFTW.
OxiNum 0.1.4 closes an unbounded-allocation class across add/sub, remainder, and binary-splitting transcendentals — a legitimately valid but extreme BigFloat exponent could previously drive memory proportional to the exponent gap, aborting the process. New MAX_EXACT_CONVERSION_BITS-guarded try_* fallible APIs, an enforced BigFloat exponent range (EMAX/EMIN, ilogb), a fixed IEEE-754 subnormal-rounding double-rounding bug, and a Rem correctness fix. Pure Rust, no GMP, no MPFR, no FFI.
OxiCUDA 0.5.3 fixes an async-copy race condition where cuMemcpyDtoHAsync/cuMemcpyHtoDAsync and DeviceBuffer::copy_from_host could return before the transfer had actually landed, letting the very next read observe stale or zeroed device/host memory. 38,675 tests, ~1.30M SLoC, 74 crates.
SciRS2 0.6.3 fixes seven Windows-only crash-and-corruption bugs invisible on Linux CI: an alloc/dealloc alignment mismatch that corrupted the heap, a recursive Drop impl that overflowed the 1MB default stack, a ~5.5GB eager-allocation process abort, and a path validator that rejected every C:\ path — plus two numerical-correctness fixes in ESPRIT and N4SID system identification. Pure Rust, Apache-2.0.
SciRS2 0.6.2 replaces the C-linked hdf5 crate with pure-Rust oxih5, fixing a critical silent-data-loss bug in compressed HDF5 writes and a self-concealing dataspace-parsing bug along the way. libnuma, tracy-client, and opencl3 are gone from the dependency graph, plus a breaking TLS-provider hardening. Pure Rust, Apache-2.0.
SciRS2 0.6.1 replaces placeholder and silently-wrong code paths with real implementations: genuine model-serving codegen, a critical DLPack SIGBUS fix, honest GPU-dispatch and hardware-detection reporting, and a symbolic-engine soundness fix — plus F-distribution ppf, spatial hamming distance, and new finance facades. Pure Rust, Apache-2.0.
SciRS2 0.5.1 is a correctness and Pure-Rust hardening release: exact autograd gradients for matrix functions (Sylvester / Daleckii–Krein / reduced-SVD VJP), a restored CoreError #[non_exhaustive] contract, honest GPU/CUDA reporting, public Zarr v2/v3, and the removal of the C/MPFR rug, C rusqlite, and tokenizers dependencies. 36,606 tests, zero warnings — the sovereign scientific-computing layer of the COOLJAPAN ecosystem.
OxiArc 0.3.3 is a correctness release: Brotli now round-trips high-entropy and incompressible data byte-for-byte across all quality levels 1–11. A package-merge Huffman code generator and an extended insert-length table fix two long-standing encoder bugs. Pure Rust, on-the-wire compatible, 1,679 tests passing.