NEWS

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faissR 0.99.15

• Initial Bioconductor development release.
• Provides FAISS-backed nearest-neighbour search, graph construction, graph clustering, k-nearest-neighbour prediction, and k-means helpers.
• Adds optional CUDA, FAISS GPU, RAPIDS cuVS, and RAPIDS libcugraph routes where the corresponding system libraries are available.
• Supports shape-aware automatic tuning policies for Euclidean, cosine, correlation, and inner-product nearest-neighbour searches.
• Clarifies Bioconductor/r-universe system requirements: FAISS is the mandatory compiled dependency for all builds, while CUDA/RAPIDS libraries are optional and requested only for explicit GPU builds.
• Adds a repository-only r-universe .prepare hook to install the mandatory Debian/Ubuntu FAISS development package while the upstream sysreq database learns the FAISS rule, and detects /usr multiarch FAISS installs during configuration.
• Allows ordinary macOS GitHub Actions builders to install the mandatory Homebrew faiss and libomp dependencies during configure, while keeping ordinary interactive installs explicit or opt-in.
• Handles r-universe/WebAssembly cross-builds without leaking host Linux headers into the Emscripten sysroot. WebAssembly builds install diagnostic stubs because native FAISS/CUDA/cuVS libraries are not available in webR; supported native Linux/macOS builds still require FAISS.
• Detects already-active conda/mamba environments through CONDA_PREFIX as a passive macOS FAISS/libomp fallback without installing conda from configure.
• Marks automated Bioconductor macOS binary builds as unsupported for real FAISS execution until the Bioconductor/r-universe macOS system-library bundle provides FAISS. Because r-universe currently still launches the macOS binary job, that exact worker receives diagnostic stubs when FAISS is absent; user macOS source installs remain supported with Homebrew or an active conda/mamba environment and still require real FAISS.
• Keeps FAISS k-means compilation compatible with distro FAISS headers that do not expose newer clustering fields, and links macOS OpenMP through the exact detected libomp library path to avoid duplicate OpenMP runtimes when Homebrew FAISS is loaded.