Release v2.25.1

Release: v2.25.1 [skip ci]

Patch

• Improve: Harden mini-float testing across SDKs (967eb54)
• Make: Expose nk_shared symbols for Emscripten builds (91c08cc)
• Docs: Reference related articles for citations (d3314c0)
• Make: Harden JNI builds in CI (1d66b55)
• Make: Use standalone NumKong crate dependency (906b045)

v2.25: Float8, Performance, Correctness, & Portability!

This "minor" release is equally important for performance, correctness, and portability!

• It brings 1000+ new SIMD kernels from the NumKong v7 release, previously SimSIMD. This adds support for significantly more x86, Arm, RISC-V, PowerPC, LoongArch, and WASM hardware-accelerated backends to what is already one of the most portable production-grade search engine online.
• Undefined behaviours & graph refinements, by @yoonseok-kim, @DavIvek, @madmax983 🫶
• Memory safety improvements, by @knowack1, @dustinhealy, & @rschu1ze 🫶
• Linting and documentation improvements, by @Samoed & @l1x 🫶
• Compatibility patches, by @JadenGeller, @anaslimem, & @fran6co 🫶
• Memory stats, by @swasik & @Crow-de-a-d 🫶

Minor

• Add: Native UInt8 u8 API and Float6 e2m3 & e3m2 quantization (e4db172)
• Add: Float8 support with E5M2 & E4M3 (bf80af8)
• Add: Uniform hardware caps queries across SDKs (11f4d5c)
• Add: expose memory_stats through Rust FFI bindings (d5a04f8)
• Add: memory_stats_t struct with per-tape breakdowns (8f6f8f6)

Patch

• Fix: Harden min & max symbols for MSVC (a270651)
• Fix: Over-allocate & in-align striped locks (7aee20f)
• Improve: Print stack-traces in test singal-handlers (94c7ec9)
• Make: Bump NumKong to v7.5 (c666f16)
• Docs: Benchmarks table formatting (95963ff)
• Improve: Extended uint8 interfaces for Java, Swift, ObjC, JS (82e1196)
• Improve: Smaller & faster striped_locks_gt (4a47d18)
• Docs: SIFT & BigANN subsets (1c60c6c)
• Fix: ObjC compilation issue for b1x8 (d54383d)
• Improve: Reuse eval.random_vectors in scripts (2b7f469)
• Improve: New benchmarking suite (4f6d2d7)
• Improve: Type annotations for Python SDK & scripts (c39b15b)
• Improve: Extended bench.cpp & datasets for 100M scale (dac569c)
• Make: Split flaky CIBW jobs & add retries (5e0139f)
• Make: Drop deprecated SPDX license expression (#744) (145272f)
• Make: Drop EOL language versions and standardize CI runners (0a803a9)
• Fix: Don't compile NumKong C sources into macOS wheel (2c44fb0)
• Make: Bump deps for MSVC compatibility (36981b0)
• Fix: Re-generate JNI header for hardware_acceleration checks (1a3a86e)
• Make: Newer /Zc:preprocessor for MSVC in binding.gyp (79cd39f)
• Fix: NumKong dispatch for Sorensen and binary vector dimensions (5546dd6)
• Fix: Use RAND_MAX instead of INT_MAX for random test vectors (d45a616)
• Make: Use "Trusted Publishing" for NPM (8a02676)
• Fix: PyTest module collision & PeachPy on Python 3.11+ (8ed2548)
• Fix: MSVC type-conversion warnings (#709) (98486cd)
• Improve: Test remove/rename/multi in Rust (17dfac3)
• Make: Arm32-friendly NumKong version (6f65872)
• Fix: Move-safe init for Rust SDK (#704) (05b5eb0)
• Fix: Check for config.expansion early in add (fb2e2f7)
• Fix: Stale vector references in refine_ within index_get::update (#731) (451e2d5)
• Fix: Deduplication logic in form_reverse_links_ (#729) (9ea8233)
• Make: Switch to Ruff linter (#737) (bff98ed)
• Fix: OpenMP flags forwarding in build.rs (#724) (46256a2)
• Fix: Heap-buffer-overflow in HNSW search via sorted_buffer_gt (5697c60)
• Fix: Serial Float16 conversion fallbacks (49b8b2c)
• Make: Avoid npm ci in non-dependency-locked state (42e9203)
• Make: Bump Clang due to LLVM optimizer bug (5bd15bb)
• Make: Don't version removed dependency lock files (62724d4)
• Fix: Hash set iterator returns deleted tombstones in equal_range (#727) (7d95f6f)
• Fix: MAP_FAILED on Windows (#742) (786a7d9)
• Fix: Escalate MAP_FAILED on POSIX (#722) (ba47347)
• Fix: Strip nested sub-directories from package distributions (#733) (3832c02)
• Fix: Guard Float16 APIs with #if arch(arm64) in Swift SDK (#739) (5bcf787)
• Docs: Rust Cos metric docstring (#734) (c9ff5b8)
• Fix: Avoid IntPtr global out-of-scope alias in C# (5413341)
• Improve: Expose & test Float8 in Java, ObjC, Go, JS, Rust (bebb539)
• Fix: Stale symbol name in join demo (ef0dc4f)
• Improve: Allow non-sequential vector IDs in bench (11bcde1)
• Make: Pull NumKong from PyPi (1b46d1b)
• Make: Pull NumKong via CMake (b0f8708)
• Make: Pull SwiftPM NumKong dependency (eede286)
• Make: Pull NumKong crate (46347ec)
• Make: Switch from SimSIMD v6 to NumKong v7 submodule (b2361c3)
• Docs: Link capitalization (98eeb9e)
• Fix: Set equality comparison in Numba JIT PyTest (30381b7)
• Fix: Avoid duplicate neighbor slots in HNSW reverse links (#699) (6995246)
• Fix: Postfix operators for member/candidate iterators in index_gt (#718) (7fbf086)
• Fix: Potential UB in index_dense::add (#721) (6b69e95)
• Fix: Accurately track total allocated memory in memory_mapping_allocator_gt (#608) (3c25f20)
• Fix: Python serialized_length missing argument (#714) (5cde3fc)

Release v2.24.0

Release: v2.24.0 [skip ci]

Minor

• Add: GetHandle and GetConfig to give access to the C handle in Golang (#705) (dec24b8)

Patch

• Make: Bump SimSIMD (2be3bbb)
• Fix: mmap flags for FreeBSD (#711) (3ad2485)
• Fix: Compilation errors in Qt environment (#706) (20cb742)
• Fix: Negative denominator in Pearson correlation (#707) (34d5b8c)
• Docs: Fix broken links (#708) (453290d)

Release v2.23.0

Release: v2.23.0 [skip ci]

Minor

• Add: Python 3.14 support (#693) (43ee8b7)

Release v2.22.0

Release: v2.22.0 [skip ci]

Minor

• Add: Missing GoLang APIs (3590961)
• Add: FilteredSearch and FilteredSearchI8 functions (1f3e086)
• Add: Nil handler validation in FilteredSearchUnsafe (0df8511)
• Add: Filtered search callback support in GoLang bindings (4829a29)

Patch

• Fix: Consistent threads capacity in Go tests (cc86de9)
• Make: Bump SimSIMD (42aef88)
• Fix: Missing switch cases for settings (6e84b1f)
• Fix: Keep GoLang vectors alive (ba7d699)
• Improve: Make FilteredSearchHandler fields public (55c1ea8)
• Fix: FilteredSearchHandler typo and use correct C function (3cd62ce)
• Improve: Add data field to FilteredSearchHandler test (a17c6fa)
• Fix: Filtered search test logic and remove debug output (95f713e)
• Improve: FilteredSearchUnsafe documentation (72a9f5a)
• Improve: Fewer conditional locks for immutable index views (#689) (4f02166)
• Fix: static is not thread safe (8938d6e)
• Fix: check maxResults > 0 (f109269)
• Fix: exact search return results with size querySize * maxResults (c8adc05)
• Make: Bump CI versions (7685a67)
• Make: Wrong ISA extensions for Windows JNI builds (42ff470)

v2.21.4: Concurrency Patches

• Fix: Progress callback passing & minor checks (c604a90)
• Fix: Skip key rewrites in index_gt::update (#679) (6387134)
• Fix: Correct conditional lock release w/out acquire (#681) (c001112)

Release v2.21.3

Release: v2.21.3 [skip ci]

Patch

• Make: Bump SimSIMD (a2aeae4)

Release v2.21.2

Release: v2.21.2 [skip ci]

Patch

• Fix: Race condition in index_gt::update (5dafaca)

Release v2.21.1

Release: v2.21.1 [skip ci]

Patch

• Make: Bump GitHub CI versions (6d44dd6)
• Make: Don't print .Net env libraries in CI (65edd4d)
• Docs: Normalize noreply.github.com contributors (abc0b5b)
• Docs: Vald integration in GoLang (3cfbf04)
• Docs: Highlight new Swift & Rust features (dc6a777)

v2.21: New GoLang & Java APIs ☕

Thanks to @cpegeric for his proposals and PRs 👏

Minor

• Add: All new test suite for Go (1f190b4)
• Add: io.Closer interface support (fd79bf7)
• Add: New GoLang APIs for more types (d1f34af)

Patch

• Fix: Allow reserving threads in Java (55b5f76)
• Docs: Cleaner code & reserve semantics (1d6ae88)
• Improve: Pass Go static checks (584e201)
• Fix: Avoid default =0 outside of the implementation (07c890d)
• Make: reinstall cmake on newer macOS runners (e70b57f)
• Improve: Rename *WithPointer to *Unsafe (12ee352)
• Improve: Test new GoLang APIs (f222b5f)

Hashes

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• hashes.md : c6cb480b52dbf1af878b2a62ecc87c8aaa473bc59ee111cefd4866e99b568b06
• usearch-2.21.0-javadoc.jar : 3ff69fd8813191e025215a0e5677731da3133dc5743f781846684df7a62d5a96
• usearch-2.21.0-sources.jar : 69a8375f56cf6e54b45510d82be33708a4b35ba8309e5846596440b06e85da96
• usearch-2.21.0.jar : fdcb44b9a27d2a8100ba2370acacadf7ed6c3a16017e286d7b5ace3df0160fc8
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• usearch_android_arm64_2.21.0.zip : 574ff8cd40344dab9c76277644620860b4dc9503bb4d6b5a9840478c1f866865
• usearch_linux_amd64_2.21.0.deb : 39bdc54eab5fa19d7f089fdf7adc49b404b3f90580358bb162c1868dd416582a
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• usearch_wasm_2.21.0.tar.gz : 821e73bf9ea2b8cce2d0f6f8b78b846e6b02e713691ec7ced278d2bc5c0ca67e
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