What's Changed

🚨 Breaking Changes

• Using all_neighbors for mutual reachability by @jinsolp in #1234
• Refactor libcuvs_c header and source locations by @robertmaynard in #1357
• Update cagra C API enums to have more long term stable values by @robertmaynard in #1436
• Require CUDA 12.2+ by @jakirkham in #1476
• Remove mutual_reachability_graph Public API by @tarang-jain in #1481

🐛 Bug Fixes

• Allow compilation when OpenMP is disabled by @robertmaynard in #1346
• Deallocation should be noexcept by @bdice in #1416
• ANN_BENCH: Don't throw in noexcept do_deallocate by @achirkin in #1417
• Remove unneeded cutlass public build/install dependency by @robertmaynard in #1411
• cuvs_static properly adds C include dir to target_include_directories by @robertmaynard in #1426
• Fix C/Python serialization for FP16. Add python tests by @lowener in #1429
• Properly guard usage of openmp function calls by @robertmaynard in #1435
• Update nlohmann-json to 3.12.0 by @KyleFromNVIDIA in #1449
• Fix test params for filtered ivf_flat by @aamijar in #1463
• [REVIEW][Java][Bug] Fix CuVSMatrix#getRow to take strides into consideration by @ldematte in #1442
• Adding more tests and I find the compression settings are broken in the Golang API by @maxwbuckley in #1472
• Fix binary quantizer host transform bounds and stream order by @achirkin in #1473
• [BUG] Check if dynamic batching conf is null by @tarang-jain in #1459
• Include cagra search algorithms in libcuvs_static.a by @robertmaynard in #1457
• [Java] Disable flaky test testFloatSerialization by @mythrocks in #1503
• Add libaio to cuvs-bench-cpu, improve bench dependencies by @tarang-jain in #1480
• [Java] Fix CagraBuildAndSearchIT concurrent deallocation errors by @ldematte in #1510
• Pin Cython pre-3.2.0 and PyTest pre-9 by @jakirkham in #1528
• Fix a bug in compute_distance_00_generate.py by @enp1s0 in #1532
• Check stride information in from_dlpack by @benfred in #1458
• refactored update-version.sh to handle new branching strategy by @rockhowse in #1535
• fixed bug with update-version.sh by @rockhowse in #1556
• fix(ci): remove unsupported name parameter from custom job def by @gforsyth in #1560
• Remove need to have rapids_logger headers installed to use clib by @robertmaynard in #1527
• Fix BruteForce serialize test by @lowener in #1568
• [C] Fix: cuvsRMMMemoryResourceReset sets a valid resource by @ldematte in #1540
• Fix typo in date field by @vyasr in #1563
• SNMG ANN build with OpenMP nested parallelism by @viclafargue in #1526

📖 Documentation

• Fix table of content documentation by @lowener in #1427
• Docs Spectral Clustering by @aamijar in #1490
• Use current system architecture in conda environment creation command by @bdice in #1499
• Updating README for release by @cjnolet in #1584

🚀 New Features

• Unify binding headers by @robertmaynard in #1413
• CAGRA: decouple source idx type from graph idx type and add a mapping between them by @achirkin in #1251
• Add SOVERSION information to libcuvs_c by @robertmaynard in #1474
• Spectral Clustering by @aamijar in #1425
• ANN_BENCH: integrate NVTX statistics by @achirkin in #1529
• Add Augmented Core Extraction Algorithm by @julianmi in #1404
• Extend CI to build and test x86 libcuvs_c tarballs by @robertmaynard in #1524
• Introduce libcuvs-headers and libcuvs-static CMake components and conda packages by @divyegala in #1494
• [Java] Bindings, tests and benchmarks for RMM pooled memory by @ldematte in #1453

🛠️ Improvements

• Update RAPIDS_BRANCH, codify changes in update-version.sh by @KyleFromNVIDIA in #1368
• Move eigen_solvers from raft by @aamijar in #1402
• CosineExpanded Distance Metric for CAGRA by @tarang-jain in #197
• Enable sccache-dist connection pool by @trxcllnt in #1431
• Use pinned_host_memory_resource instead of pinned_memory_resource. by @bdice in #1434
• Use main in RAPIDS_BRANCH by @bdice in #1439
• Use main shared-workflows branch by @bdice in #1444
• [Review] ScaNN: Add option for AVQ/Noise Shaping to bfloat16 quantization by @rmaschal in #1354
• Add NVTX annotations to CAGRA knn graph build stage by @achirkin in #1443
• [Review][C] Export the ability to get/set the log level to the C API by @ldematte in #1375
• [Java] Test indexing and serialization with integral (byte) dataset by @ldematte in #1366
• Use SPDX for all copyright headers by @KyleFromNVIDIA in #1446
• [REVIEW][Java] Log level api by @ldematte in #1376
• [Review] [Java] Disable flaky Java tests to reduce CI churn by @mythrocks in #1469
• Refactor rapids_cpm_package_details to rapids_cpm_package_info by @bdice in #1433
• Fix golang test name and add more logging and error checking. by @maxwbuckley in #1471
• Use an explicit std::min for byte alignment calculation by @maxwbuckley in #1465
• Replace custom cuda_pinned_resource with RMM's pinned_host_memory_resource by @bdice in #1466
• Add patch for FAISS memory resources by @bdice in #1477
• Improved CAGRA build parameter heuristics by @achirkin in #1448
• Decouple C++ library from C library by @divyegala in #1488
• Use RAPIDS_BRANCH in cmake-format invocations that need rapids-cmake configs by @bdice in #1475
• eigen tolerance option Spectral Embedding by @aamijar in #1493
• Update to CUDA 13.0.2 by @bdice in #1506
• Single Linkage to Use all_neighbors API to build the KNN graph by @tarang-jain in #1507
• Migrate to new CCCL memory resource interface by @bdice in #1502
• Remove unused headers scann by @lowener in #1508
• Update RMM includes from <rmm/mr/device/*> to <rmm/mr/*> by @bdice in #1538
• Use ruff-check, ruff-format instead of black, flake8 by @KyleFromNVIDIA in #1500
• Set memory pool from Python multi-GPU resource by @viclafargue in #1530
• [Java] Fix format with spotless by @ldematte in #1539
• fix bad version update by @trxcllnt in #1555
• Deduplicate KMeans instantiations by @divyegala in #1565
• Improve memory usage in build_mr_linkage by @jinsolp in #1550
• Use sccache-dist build cluster for conda and wheel builds by @trxcllnt in #1495
• [Java] One PinnedMemoryBuffer per CuVSResourcesImpl by @ldematte in #1441
• [Java] Relax cuVS version matching by @ldematte in #1544

New Contributors

• @maxwbuckley made their first contribution in #1471
• @rockhowse made their first contribution in #1535

Full Changelog: v25.12.00a...v25.12.00