diff --git a/math/faiss/Makefile b/math/faiss/Makefile
index fb4bebbbadc3..9769ec9ebd6d 100644
--- a/math/faiss/Makefile
+++ b/math/faiss/Makefile
@@ -1,35 +1,34 @@
 PORTNAME=	faiss
 DISTVERSIONPREFIX=	v
-DISTVERSION=	1.8.0
-PORTREVISION=	1
+DISTVERSION=	1.9.0
 CATEGORIES=	math
 
-PATCH_SITES=	https://github.com/${GH_ACCOUNT}/${GH_PROJECT}/commit/
-PATCHFILES=	70c5de13cd9e2ce94181fe67d9a70eb371ecd554.patch:-p1 # fix GTest linkage
+#PATCH_SITES=	https://github.com/${GH_ACCOUNT}/${GH_PROJECT}/commit/
+#PATCHFILES=	70c5de13cd9e2ce94181fe67d9a70eb371ecd554.patch:-p1 # fix GTest linkage
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Library for efficient similarity search & clustering of dense vectors
 WWW=		https://github.com/facebookresearch/faiss
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 .if !exists(/usr/include/omp.h)
 BROKEN=		requires OpenMP support that is missing on this architecture
 .endif
 
 BUILD_DEPENDS=	openblas>0:math/openblas # faiss links with libopenblasp-rN.N.N.so (installed by default only on amd64,i386), so use non-filename-specific DEPENDS commands
 RUN_DEPENDS=	openblas>0:math/openblas
 TEST_DEPENDS=	googletest>0:devel/googletest
 
-USES=		cmake:testing compiler:c++11-lang localbase:ldflags # tests fail to link, see https://github.com/facebookresearch/faiss/issues/2654
+USES=		cmake:testing compiler:c++11-lang localbase:ldflags # tests fail to compile, see https://github.com/facebookresearch/faiss/issues/3913
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	facebookresearch
 
 #LDFLAGS+=	-lgtest #-pthread
 
 CMAKE_ON=	BUILD_SHARED_LIBS
 CMAKE_OFF=	BUILD_TESTING FAISS_ENABLE_GPU FAISS_ENABLE_PYTHON
 
 .include <bsd.port.mk>
diff --git a/math/faiss/distinfo b/math/faiss/distinfo
index 6951c712ece4..1595317a3324 100644
--- a/math/faiss/distinfo
+++ b/math/faiss/distinfo
@@ -1,5 +1,3 @@
-TIMESTAMP = 1709601119
-SHA256 (facebookresearch-faiss-v1.8.0_GH0.tar.gz) = 56ece0a419d62eaa11e39022fa27c8ed6d5a9b9eb7416cc5a0fdbeab07ec2f0c
-SIZE (facebookresearch-faiss-v1.8.0_GH0.tar.gz) = 1015506
-SHA256 (70c5de13cd9e2ce94181fe67d9a70eb371ecd554.patch) = a50d06093d3aa6450caa127d6f10bac5325474f5102fea87f07170d11e2293c3
-SIZE (70c5de13cd9e2ce94181fe67d9a70eb371ecd554.patch) = 869
+TIMESTAMP = 1728188633
+SHA256 (facebookresearch-faiss-v1.9.0_GH0.tar.gz) = a6c3c60811aeec2dd8943a41f3df244bfed12371453d9b10eaf6ba55fafad1d2
+SIZE (facebookresearch-faiss-v1.9.0_GH0.tar.gz) = 1084439
diff --git a/math/faiss/pkg-plist b/math/faiss/pkg-plist
index 7f4fb030db94..726ba7114f2b 100644
--- a/math/faiss/pkg-plist
+++ b/math/faiss/pkg-plist
@@ -1,128 +1,129 @@
 include/faiss/AutoTune.h
 include/faiss/Clustering.h
 include/faiss/IVFlib.h
 include/faiss/Index.h
 include/faiss/Index2Layer.h
 include/faiss/IndexAdditiveQuantizer.h
 include/faiss/IndexAdditiveQuantizerFastScan.h
 include/faiss/IndexBinary.h
 include/faiss/IndexBinaryFlat.h
 include/faiss/IndexBinaryFromFloat.h
 include/faiss/IndexBinaryHNSW.h
 include/faiss/IndexBinaryHash.h
 include/faiss/IndexBinaryIVF.h
 include/faiss/IndexFastScan.h
 include/faiss/IndexFlat.h
 include/faiss/IndexFlatCodes.h
 include/faiss/IndexHNSW.h
 include/faiss/IndexIDMap.h
 include/faiss/IndexIVF.h
 include/faiss/IndexIVFAdditiveQuantizer.h
 include/faiss/IndexIVFAdditiveQuantizerFastScan.h
 include/faiss/IndexIVFFastScan.h
 include/faiss/IndexIVFFlat.h
 include/faiss/IndexIVFIndependentQuantizer.h
 include/faiss/IndexIVFPQ.h
 include/faiss/IndexIVFPQFastScan.h
 include/faiss/IndexIVFPQR.h
 include/faiss/IndexIVFSpectralHash.h
 include/faiss/IndexLSH.h
 include/faiss/IndexLattice.h
 include/faiss/IndexNNDescent.h
 include/faiss/IndexNSG.h
 include/faiss/IndexPQ.h
 include/faiss/IndexPQFastScan.h
 include/faiss/IndexPreTransform.h
 include/faiss/IndexRefine.h
 include/faiss/IndexReplicas.h
 include/faiss/IndexRowwiseMinMax.h
 include/faiss/IndexScalarQuantizer.h
 include/faiss/IndexShards.h
 include/faiss/IndexShardsIVF.h
 include/faiss/MatrixStats.h
 include/faiss/MetaIndexes.h
 include/faiss/MetricType.h
 include/faiss/VectorTransform.h
 include/faiss/clone_index.h
 include/faiss/impl/AdditiveQuantizer.h
 include/faiss/impl/AuxIndexStructures.h
 include/faiss/impl/CodePacker.h
 include/faiss/impl/DistanceComputer.h
 include/faiss/impl/FaissAssert.h
 include/faiss/impl/FaissException.h
 include/faiss/impl/HNSW.h
 include/faiss/impl/IDSelector.h
 include/faiss/impl/LocalSearchQuantizer.h
 include/faiss/impl/LookupTableScaler.h
 include/faiss/impl/NNDescent.h
 include/faiss/impl/NSG.h
 include/faiss/impl/PolysemousTraining.h
 include/faiss/impl/ProductAdditiveQuantizer.h
 include/faiss/impl/ProductQuantizer-inl.h
 include/faiss/impl/ProductQuantizer.h
 include/faiss/impl/Quantizer.h
 include/faiss/impl/ResidualQuantizer.h
 include/faiss/impl/ResultHandler.h
 include/faiss/impl/ScalarQuantizer.h
 include/faiss/impl/ThreadedIndex-inl.h
 include/faiss/impl/ThreadedIndex.h
 include/faiss/impl/code_distance/code_distance-avx2.h
 include/faiss/impl/code_distance/code_distance-generic.h
 include/faiss/impl/code_distance/code_distance.h
 include/faiss/impl/io.h
 include/faiss/impl/io_macros.h
 include/faiss/impl/kmeans1d.h
 include/faiss/impl/lattice_Zn.h
 include/faiss/impl/platform_macros.h
 include/faiss/impl/pq4_fast_scan.h
 include/faiss/impl/residual_quantizer_encode_steps.h
 include/faiss/impl/simd_result_handlers.h
 include/faiss/index_factory.h
 include/faiss/index_io.h
 include/faiss/invlists/BlockInvertedLists.h
 include/faiss/invlists/DirectMap.h
 include/faiss/invlists/InvertedLists.h
 include/faiss/invlists/InvertedListsIOHook.h
 include/faiss/invlists/OnDiskInvertedLists.h
 include/faiss/utils/AlignedTable.h
 include/faiss/utils/Heap.h
 include/faiss/utils/WorkerThread.h
 include/faiss/utils/approx_topk/approx_topk.h
 include/faiss/utils/approx_topk/avx2-inl.h
 include/faiss/utils/approx_topk/generic.h
 include/faiss/utils/approx_topk/mode.h
 include/faiss/utils/approx_topk_hamming/approx_topk_hamming.h
+include/faiss/utils/bf16.h
 include/faiss/utils/distances.h
 include/faiss/utils/distances_fused/avx512.h
 include/faiss/utils/distances_fused/distances_fused.h
 include/faiss/utils/distances_fused/simdlib_based.h
 include/faiss/utils/extra_distances-inl.h
 include/faiss/utils/extra_distances.h
 include/faiss/utils/fp16-arm.h
 include/faiss/utils/fp16-fp16c.h
 include/faiss/utils/fp16-inl.h
 include/faiss/utils/fp16.h
 include/faiss/utils/hamming-inl.h
 include/faiss/utils/hamming.h
 include/faiss/utils/hamming_distance/avx2-inl.h
 include/faiss/utils/hamming_distance/common.h
 include/faiss/utils/hamming_distance/generic-inl.h
 include/faiss/utils/hamming_distance/hamdis-inl.h
 include/faiss/utils/hamming_distance/neon-inl.h
 include/faiss/utils/ordered_key_value.h
 include/faiss/utils/partitioning.h
 include/faiss/utils/prefetch.h
 include/faiss/utils/quantize_lut.h
 include/faiss/utils/random.h
 include/faiss/utils/simdlib.h
 include/faiss/utils/simdlib_avx2.h
 include/faiss/utils/simdlib_emulated.h
 include/faiss/utils/simdlib_neon.h
 include/faiss/utils/sorting.h
 include/faiss/utils/transpose/transpose-avx2-inl.h
 include/faiss/utils/utils.h
 lib/libfaiss.so
 %%DATADIR%%/faiss-config-version.cmake
 %%DATADIR%%/faiss-config.cmake
 %%DATADIR%%/faiss-targets-%%CMAKE_BUILD_TYPE%%.cmake
 %%DATADIR%%/faiss-targets.cmake
diff --git a/math/py-faiss/Makefile b/math/py-faiss/Makefile
index 7040bfb21d68..b83f259c71b5 100644
--- a/math/py-faiss/Makefile
+++ b/math/py-faiss/Makefile
@@ -1,46 +1,47 @@
 PORTNAME=	faiss
 DISTVERSIONPREFIX=	v
-DISTVERSION=	1.8.0
+DISTVERSION=	1.9.0
 CATEGORIES=	math
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Library for efficient similarity search & clustering of dense vectors
 WWW=		https://github.com/facebookresearch/faiss
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/../../LICENSE
 
 BROKEN_i386=	clang crashes, see bug#261580
 
-PY_DEPENDS=	${PYNUMPY}
+PY_DEPENDS=	${PYNUMPY} \
+		${PYTHON_PKGNAMEPREFIX}packaging>0:devel/py-packaging@${PY_FLAVOR}
 BUILD_DEPENDS=	swig:devel/swig \
 		${PY_DEPENDS}
 LIB_DEPENDS=	libfaiss.so:math/faiss
 RUN_DEPENDS=	${PY_DEPENDS}
 
 USES=		cmake compiler:c++11-lang localbase python
-USE_PYTHON=	flavors pytest
+USE_PYTHON=	flavors pytest # tests fail to run, see https://github.com/facebookresearch/faiss/issues/3914
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	facebookresearch
 
 WRKSRC_SUBDIR=	faiss/python
 
 CMAKE_ARGS=	-DPython_EXECUTABLE:STRING=${PYTHON_CMD}
 
 TEST_WRKSRC=	${WRKSRC}/../..
 TEST_ENV=	${MAKE_ENV} PYTHONPATH=${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}
 
 post-patch: # remove GPU testcases
-	${RM} -r ${WRKSRC}/../../faiss/gpu
+	@${RM} -r ${WRKSRC}/../../faiss/gpu
 
 do-install: # see https://github.com/facebookresearch/faiss/issues/2194
 	${MKDIR} ${STAGEDIR}${PYTHON_SITELIBDIR}/${PORTNAME}
 	${INSTALL_LIB} ${BUILD_WRKSRC}/_swigfaiss.so ${STAGEDIR}${PYTHON_SITELIBDIR}/${PORTNAME}
 .for f in __init__.py array_conversions.py class_wrappers.py extra_wrappers.py gpu_wrappers.py loader.py swigfaiss.py
 	${INSTALL_DATA} ${BUILD_WRKSRC}/${f} ${STAGEDIR}${PYTHON_SITELIBDIR}/${PORTNAME}
 .endfor
 	cd ${BUILD_WRKSRC} && ${COPYTREE_SHARE} contrib ${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}/${PORTNAME}
 
 .include <bsd.port.mk>
diff --git a/math/py-faiss/distinfo b/math/py-faiss/distinfo
index 191a495b8773..ad7e827ec030 100644
--- a/math/py-faiss/distinfo
+++ b/math/py-faiss/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1709597479
-SHA256 (facebookresearch-faiss-v1.8.0_GH0.tar.gz) = 56ece0a419d62eaa11e39022fa27c8ed6d5a9b9eb7416cc5a0fdbeab07ec2f0c
-SIZE (facebookresearch-faiss-v1.8.0_GH0.tar.gz) = 1015506
+TIMESTAMP = 1728191400
+SHA256 (facebookresearch-faiss-v1.9.0_GH0.tar.gz) = a6c3c60811aeec2dd8943a41f3df244bfed12371453d9b10eaf6ba55fafad1d2
+SIZE (facebookresearch-faiss-v1.9.0_GH0.tar.gz) = 1084439
diff --git a/math/py-faiss/files/patch-swig b/math/py-faiss/files/patch-swig
deleted file mode 100644
index 1aa5f58bcbd8..000000000000
--- a/math/py-faiss/files/patch-swig
+++ /dev/null
@@ -1,21 +0,0 @@
-Obtained from:	https://github.com/facebookresearch/faiss/commit/d6854136afa3b987defb2c8e8108bad76ebdb949
-
---- swigfaiss.swig.orig	2024-02-29 21:24:50 UTC
-+++ swigfaiss.swig
-@@ -1022,14 +1022,14 @@ PyObject *swig_ptr (PyObject *a)
-         return SWIG_NewPointerObj(data, SWIGTYPE_p_bool, 0);
-     }
-     if(PyArray_TYPE(ao) == NPY_UINT64) {
--#ifdef SWIGWORDSIZE64
-+#if (__SIZEOF_LONG__ == 8)
-         return SWIG_NewPointerObj(data, SWIGTYPE_p_unsigned_long, 0);
- #else
-         return SWIG_NewPointerObj(data, SWIGTYPE_p_unsigned_long_long, 0);
- #endif
-     }
-     if(PyArray_TYPE(ao) == NPY_INT64) {
--#ifdef SWIGWORDSIZE64
-+#if  (__SIZEOF_LONG__ == 8)
-         return SWIG_NewPointerObj(data, SWIGTYPE_p_long, 0);
- #else
-         return SWIG_NewPointerObj(data, SWIGTYPE_p_long_long, 0);
diff --git a/math/py-faiss/pkg-plist b/math/py-faiss/pkg-plist
index 6b82a1bd1b71..9f2af6dceddf 100644
--- a/math/py-faiss/pkg-plist
+++ b/math/py-faiss/pkg-plist
@@ -1,22 +1,27 @@
 %%PYTHON_SITELIBDIR%%/faiss/__init__.py
 %%PYTHON_SITELIBDIR%%/faiss/_swigfaiss.so
 %%PYTHON_SITELIBDIR%%/faiss/array_conversions.py
 %%PYTHON_SITELIBDIR%%/faiss/class_wrappers.py
+%%PYTHON_SITELIBDIR%%/faiss/contrib/README.md
 %%PYTHON_SITELIBDIR%%/faiss/contrib/__init__.py
 %%PYTHON_SITELIBDIR%%/faiss/contrib/big_batch_search.py
 %%PYTHON_SITELIBDIR%%/faiss/contrib/client_server.py
 %%PYTHON_SITELIBDIR%%/faiss/contrib/clustering.py
 %%PYTHON_SITELIBDIR%%/faiss/contrib/datasets.py
 %%PYTHON_SITELIBDIR%%/faiss/contrib/evaluation.py
 %%PYTHON_SITELIBDIR%%/faiss/contrib/exhaustive_search.py
 %%PYTHON_SITELIBDIR%%/faiss/contrib/factory_tools.py
 %%PYTHON_SITELIBDIR%%/faiss/contrib/inspect_tools.py
 %%PYTHON_SITELIBDIR%%/faiss/contrib/ivf_tools.py
 %%PYTHON_SITELIBDIR%%/faiss/contrib/ondisk.py
 %%PYTHON_SITELIBDIR%%/faiss/contrib/rpc.py
+%%PYTHON_SITELIBDIR%%/faiss/contrib/torch/README.md
+%%PYTHON_SITELIBDIR%%/faiss/contrib/torch/__init__.py
+%%PYTHON_SITELIBDIR%%/faiss/contrib/torch/clustering.py
+%%PYTHON_SITELIBDIR%%/faiss/contrib/torch/quantization.py
 %%PYTHON_SITELIBDIR%%/faiss/contrib/torch_utils.py
 %%PYTHON_SITELIBDIR%%/faiss/contrib/vecs_io.py
 %%PYTHON_SITELIBDIR%%/faiss/extra_wrappers.py
 %%PYTHON_SITELIBDIR%%/faiss/gpu_wrappers.py
 %%PYTHON_SITELIBDIR%%/faiss/loader.py
 %%PYTHON_SITELIBDIR%%/faiss/swigfaiss.py