diff --git a/sci-libs/mlpack/mlpack-3.4.2.recipe b/sci-libs/mlpack/mlpack-3.4.2.recipe
deleted file mode 100644
index 4f3d99203..000000000
--- a/sci-libs/mlpack/mlpack-3.4.2.recipe
+++ /dev/null
@@ -1,179 +0,0 @@
-SUMMARY="Scalable c++ machine learning library"
-DESCRIPTION="mlpack is an intuitive, fast, scalable C++ machine learning \
-library, meant to be a machine learning analog to LAPACK. It aims to implement \
-a wide array of machine learning methods and functions as a \"swiss army \
-knife\" for machine learning researchers."
-HOMEPAGE="https://www.mlpack.org/"
-COPYRIGHT="2011-2012 mlpack Team"
-LICENSE="BSD (3-clause)"
-REVISION="2"
-SOURCE_URI="https://github.com/mlpack/mlpack/archive/$portVersion.tar.gz"
-CHECKSUM_SHA256="7a7ad88c4c870b19e6c3946de23a1de1b0ee2768ddb83447bd72ea90d8cae49d"
-SOURCE_FILENAME="mlpack-$portVersion.tar.gz"
-SOURCE_URI_2="http://www.ensmallen.org/files/ensmallen-2.14.2.tar.gz"
-CHECKSUM_SHA256_2="d067ce6aec567e1f49e47c6b59600a666f74755ff46228e8855cd21cb04188cc"
-SOURCE_URI_3="http://mlpack.org/files/stb-2.22/stb_image.h#noarchive"
-CHECKSUM_SHA256_3="0e28238d865510073b5740ae8eba8cd8032cc5b25f94e0f7505fac8036864909"
-SOURCE_URI_4="http://mlpack.org/files/stb-1.13/stb_image_write.h#noarchive"
-CHECKSUM_SHA256_4="0e8b3d80bc6eb8fdb64abc4db9fec608b489bc73418eaf14beda102a0699a4c9"
-
-ARCHITECTURES="all !x86_gcc2"
-SECONDARY_ARCHITECTURES="?x86"
-
-libVersion="$portVersion"
-libVersionCompat="$libVersion compat >= ${libVersion%%.*}"
-
-PROVIDES="
-	mlpack$secondaryArchSuffix = $portVersion
-	lib:libmlpack$secondaryArchSuffix = $libVersionCompat
-	"
-REQUIRES="
-	haiku$secondaryArchSuffix
-	lib:libarmadillo$secondaryArchSuffix
-	lib:libboost_serialization$secondaryArchSuffix
-	lib:libboost_system$secondaryArchSuffix
-	lib:libboost_unit_test_framework$secondaryArchSuffix
-	lib:libgomp$secondaryArchSuffix
-	lib:libhdf5$secondaryArchSuffix
-	lib:liblapack$secondaryArchSuffix
-	lib:libopenblas$secondaryArchSuffix
-	lib:libsuperlu$secondaryArchSuffix
-	lib:libxml2$secondaryArchSuffix
-	"
-
-PROVIDES_cli="
-	mlpack${secondaryArchSuffix}_cli = $portVersion
-	cmd:mlpack_adaboost = $libVersionCompat
-	cmd:mlpack_approx_kfn = $libVersionCompat
-	cmd:mlpack_bayesian_linear_regression = $libVersionCompat
-	cmd:mlpack_cf = $libVersionCompat
-	cmd:mlpack_dbscan = $libVersionCompat
-	cmd:mlpack_decision_stump = $libVersionCompat
-	cmd:mlpack_decision_tree = $libVersionCompat
-	cmd:mlpack_det = $libVersionCompat
-	cmd:mlpack_emst = $libVersionCompat
-	cmd:mlpack_fastmks = $libVersionCompat
-	cmd:mlpack_gmm_generate = $libVersionCompat
-	cmd:mlpack_gmm_probability = $libVersionCompat
-	cmd:mlpack_gmm_train = $libVersionCompat
-	cmd:mlpack_hmm_generate = $libVersionCompat
-	cmd:mlpack_hmm_loglik = $libVersionCompat
-	cmd:mlpack_hmm_train = $libVersionCompat
-	cmd:mlpack_hmm_viterbi = $libVersionCompat
-	cmd:mlpack_hoeffding_tree = $libVersionCompat
-	cmd:mlpack_image_converter = $libVersionCompat
-	cmd:mlpack_kde = $libVersionCompat
-	cmd:mlpack_kernel_pca = $libVersionCompat
-	cmd:mlpack_kfn = $libVersionCompat
-	cmd:mlpack_kmeans = $libVersionCompat
-	cmd:mlpack_knn = $libVersionCompat
-	cmd:mlpack_krann = $libVersionCompat
-	cmd:mlpack_lars = $libVersionCompat
-	cmd:mlpack_linear_regression = $libVersionCompat
-	cmd:mlpack_linear_svm = $libVersionCompat
-	cmd:mlpack_lmnn = $libVersionCompat
-	cmd:mlpack_local_coordinate_coding = $libVersionCompat
-	cmd:mlpack_logistic_regression = $libVersionCompat
-	cmd:mlpack_lsh = $libVersionCompat
-	cmd:mlpack_mean_shift = $libVersionCompat
-	cmd:mlpack_nbc = $libVersionCompat
-	cmd:mlpack_nca = $libVersionCompat
-	cmd:mlpack_nmf = $libVersionCompat
-	cmd:mlpack_pca = $libVersionCompat
-	cmd:mlpack_perceptron = $libVersionCompat
-	cmd:mlpack_preprocess_binarize = $libVersionCompat
-	cmd:mlpack_preprocess_describe = $libVersionCompat
-	cmd:mlpack_preprocess_imputer = $libVersionCompat
-	cmd:mlpack_preprocess_one_hot_encoding = $libVersionCompat
-	cmd:mlpack_preprocess_scale = $libVersionCompat
-	cmd:mlpack_preprocess_split = $libVersionCompat
-	cmd:mlpack_radical = $libVersionCompat
-	cmd:mlpack_random_forest = $libVersionCompat
-	cmd:mlpack_range_search = $libVersionCompat
-	cmd:mlpack_softmax_regression = $libVersionCompat
-	cmd:mlpack_sparse_coding = $libVersionCompat
-	"
-REQUIRES_cli="
-	mlpack$secondaryArchSuffix == $portVersion base
-	$REQUIRES
-	"
-
-PROVIDES_devel="
-	mlpack${secondaryArchSuffix}_devel = $portVersion
-	devel:libmlpack$secondaryArchSuffix = $libVersionCompat
-	"
-REQUIRES_devel="
-	mlpack$secondaryArchSuffix == $portVersion base
-	"
-
-BUILD_REQUIRES="
-	haiku${secondaryArchSuffix}_devel
-	devel:libarmadillo$secondaryArchSuffix
-	devel:libboost_serialization$secondaryArchSuffix >= 1.70.0
-	devel:libboost_system$secondaryArchSuffix >= 1.70.0
-	devel:libboost_unit_test_framework$secondaryArchSuffix >= 1.70.0
-	devel:libhdf5$secondaryArchSuffix
-	devel:liblapack$secondaryArchSuffix
-	devel:libopenblas$secondaryArchSuffix
-	devel:libsuperlu$secondaryArchSuffix
-	devel:libxml2$secondaryArchSuffix
-	"
-BUILD_PREREQUIRES="
-	cmd:cmake
-	cmd:find
-	cmd:g++$secondaryArchSuffix
-	cmd:make
-	cmd:pkg_config$secondaryArchSuffix
-	"
-
-defineDebugInfoPackage mlpack$secondaryArchSuffix \
-	$libDir/libmlpack.so.${portVersion%.*}
-
-BUILD()
-{
-	mkdir -p build/deps/stb
-	cp "$sourceDir3"/stb_image.h "$sourceDir4"/stb_image_write.h build/deps/stb
-	ln -s "$sourceDir2" build/deps/ensmallen-2.14.2 || true
-
-	cd build
-
-	cmake .. \
-		-DCMAKE_BUILD_TYPE=Release \
-		-DCMAKE_INSTALL_PREFIX=$prefix \
-		-DBUILD_TESTS=OFF \
-		-DDEBUG=OFF \
-		-DPROFILE=OFF
-
-	# mlpack easily eats up all your ram, so don't do parallel jobs!
-	make
-}
-
-INSTALL()
-{
-	cd build
-
-	make install $jobArgs
-
-	mkdir -p $includeDir
-	mv $prefix/include/* $includeDir/
-	rmdir $prefix/include
-
-	prepareInstalledDevelLib libmlpack
-
-	fixPkgconfig
-
-	packageEntries cli \
-		"$binDir"
-
-	packageEntries devel \
-		$developDir \
-		$libDir/cmake
-}
-
-TEST()
-{
-	# Switch it on first in BUILD()
-	# Takes way too much time to build the tests
-	cd build
-	make test
-}
diff --git a/sci-libs/mlpack/mlpack-4.6.2.recipe b/sci-libs/mlpack/mlpack-4.6.2.recipe
new file mode 100644
index 000000000..1b2c80bdc
--- /dev/null
+++ b/sci-libs/mlpack/mlpack-4.6.2.recipe
@@ -0,0 +1,154 @@
+SUMMARY="Scalable  header only C++ machine learning library"
+DESCRIPTION="mlpack is an intuitive, fast, scalable header only C++ machine learning \
+library, meant to be a machine learning analog to LAPACK. It aims to implement a wide array of \
+machine learning methods and functions as a \"swiss army knife\" for machine learning \
+researchers."
+HOMEPAGE="https://www.mlpack.org/"
+COPYRIGHT="2011-2012 mlpack Team"
+LICENSE="BSD (3-clause)"
+REVISION="1"
+SOURCE_URI="https://github.com/mlpack/mlpack/archive/$portVersion.tar.gz"
+CHECKSUM_SHA256="2fe772da383a935645ced07a07b51942ca178d38129df3bf685890bc3c1752cf"
+SOURCE_FILENAME="mlpack-$portVersion.tar.gz"
+SOURCE_URI_2="http://mlpack.org/files/stb-2.22/stb_image.h#noarchive"
+CHECKSUM_SHA256_2="0e28238d865510073b5740ae8eba8cd8032cc5b25f94e0f7505fac8036864909"
+SOURCE_URI_3="http://mlpack.org/files/stb-1.13/stb_image_write.h#noarchive"
+CHECKSUM_SHA256_3="0e8b3d80bc6eb8fdb64abc4db9fec608b489bc73418eaf14beda102a0699a4c9"
+
+ARCHITECTURES="all !x86_gcc2"
+SECONDARY_ARCHITECTURES="?x86"
+
+PROVIDES="
+	mlpack$secondaryArchSuffix = $portVersion
+	devel:libmlpack$secondaryArchSuffix = $portVersion
+	"
+REQUIRES="
+	haiku$secondaryArchSuffix
+	lib:libarmadillo$secondaryArchSuffix
+	lib:libboost_serialization$secondaryArchSuffix
+	lib:libboost_system$secondaryArchSuffix
+	lib:libboost_unit_test_framework$secondaryArchSuffix
+	lib:libgomp$secondaryArchSuffix
+	lib:libhdf5$secondaryArchSuffix
+	lib:liblapack$secondaryArchSuffix
+	lib:libopenblas$secondaryArchSuffix
+	lib:libsuperlu$secondaryArchSuffix
+	lib:libxml2$secondaryArchSuffix
+	"
+
+PROVIDES_cli="
+	mlpack${secondaryArchSuffix}_cli = $portVersion
+	cmd:mlpack_adaboost = $portVersion
+	cmd:mlpack_approx_kfn = $portVersion
+	cmd:mlpack_bayesian_linear_regression = $portVersion
+	cmd:mlpack_cf = $portVersion
+	cmd:mlpack_dbscan = $portVersion
+	cmd:mlpack_decision_stump = $portVersion
+	cmd:mlpack_decision_tree = $portVersion
+	cmd:mlpack_det = $portVersion
+	cmd:mlpack_emst = $portVersion
+	cmd:mlpack_fastmks = $portVersion
+	cmd:mlpack_gmm_generate = $portVersion
+	cmd:mlpack_gmm_probability = $portVersion
+	cmd:mlpack_gmm_train = $portVersion
+	cmd:mlpack_hmm_generate = $portVersion
+	cmd:mlpack_hmm_loglik = $portVersion
+	cmd:mlpack_hmm_train = $portVersion
+	cmd:mlpack_hmm_viterbi = $portVersion
+	cmd:mlpack_hoeffding_tree = $portVersion
+	cmd:mlpack_image_converter = $portVersion
+	cmd:mlpack_kde = $portVersion
+	cmd:mlpack_kernel_pca = $portVersion
+	cmd:mlpack_kfn = $portVersion
+	cmd:mlpack_kmeans = $portVersion
+	cmd:mlpack_knn = $portVersion
+	cmd:mlpack_krann = $portVersion
+	cmd:mlpack_lars = $portVersion
+	cmd:mlpack_linear_regression = $portVersion
+	cmd:mlpack_linear_svm = $portVersion
+	cmd:mlpack_lmnn = $portVersion
+	cmd:mlpack_local_coordinate_coding = $portVersion
+	cmd:mlpack_logistic_regression = $portVersion
+	cmd:mlpack_lsh = $portVersion
+	cmd:mlpack_mean_shift = $portVersion
+	cmd:mlpack_nbc = $portVersion
+	cmd:mlpack_nca = $portVersion
+	cmd:mlpack_nmf = $portVersion
+	cmd:mlpack_pca = $portVersion
+	cmd:mlpack_perceptron = $portVersion
+	cmd:mlpack_preprocess_binarize = $portVersion
+	cmd:mlpack_preprocess_describe = $portVersion
+	cmd:mlpack_preprocess_imputer = $portVersion
+	cmd:mlpack_preprocess_one_hot_encoding = $portVersion
+	cmd:mlpack_preprocess_scale = $portVersion
+	cmd:mlpack_preprocess_split = $portVersion
+	cmd:mlpack_radical = $portVersion
+	cmd:mlpack_random_forest = $portVersion
+	cmd:mlpack_range_search = $portVersion
+	cmd:mlpack_softmax_regression = $portVersion
+	cmd:mlpack_sparse_coding = $portVersion
+	"
+REQUIRES_cli="
+#	mlpack$secondaryArchSuffix == $portVersion base
+	$REQUIRES
+	"
+
+BUILD_REQUIRES="
+	haiku${secondaryArchSuffix}_devel
+	devel:cereal$secondaryArchSuffix
+	devel:ensmallen$secondaryArchSuffix
+	devel:libarmadillo$secondaryArchSuffix
+	devel:libboost_serialization$secondaryArchSuffix >= 1.88.0
+	devel:libboost_system$secondaryArchSuffix >= 1.88.0
+	devel:libboost_unit_test_framework$secondaryArchSuffix >= 1.88.0
+	devel:libhdf5$secondaryArchSuffix
+	devel:liblapack$secondaryArchSuffix
+	devel:libopenblas$secondaryArchSuffix
+	devel:libsuperlu$secondaryArchSuffix
+	devel:libxml2$secondaryArchSuffix
+	"
+BUILD_PREREQUIRES="
+	cmd:cmake
+	cmd:find
+	cmd:g++$secondaryArchSuffix
+	cmd:make
+	cmd:pkg_config$secondaryArchSuffix
+	"
+
+BUILD()
+{
+	mkdir -p build/deps/stb
+	cp "$sourceDir2"/stb_image.h "$sourceDir3"/stb_image_write.h build/deps/stb
+
+	cd build
+
+	cmake .. \
+		-DCMAKE_BUILD_TYPE=Release \
+		$cmakeDirArgs \
+		-DCMAKE_POLICY_VERSION_MINIMUM=3.5 \
+		-DBUILD_TESTS=OFF \
+		-DDEBUG=OFF \
+		-DPROFILE=OFF \
+		-Wno-dev
+
+	# mlpack easily eats up all your ram, so don't do parallel jobs!
+	make
+}
+
+INSTALL()
+{
+	cd build
+
+	make install $jobArgs
+
+	packageEntries cli \
+		"$binDir"
+}
+
+TEST()
+{
+	# Switch it on first in BUILD()
+	# Takes way too much time to build the tests
+	cd build
+	make test
+}