diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5a6c083..cb46a73 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -82,9 +82,9 @@ if (BUILD_PYTHON)
     endif ()
 
     if (WIN32)
-      set (OTMIXMOD_PYTHON_MODULE_PATH Lib/site-packages CACHE PATH "site-packages dir")
+      set (OTMIXMOD_PYTHON_MODULE_PATH Lib/site-packages CACHE STRING "site-packages dir")
     else ()
-      set (OTMIXMOD_PYTHON_MODULE_PATH ${CMAKE_INSTALL_LIBDIR}/python${Python_VERSION_MAJOR}.${Python_VERSION_MINOR}/site-packages CACHE PATH "site-packages dir")
+      set (OTMIXMOD_PYTHON_MODULE_PATH ${CMAKE_INSTALL_LIBDIR}/python${Python_VERSION_MAJOR}.${Python_VERSION_MINOR}/site-packages CACHE STRING "site-packages dir")
     endif ()
   endif ()
 endif ()
diff --git a/ChangeLog b/ChangeLog
index bcfad49..366f38f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,4 @@
-= 0.18 release (wip)
+= 0.18 release (2024-10-23)
 
  * Add GetValidCovarianceModels
 
diff --git a/distro/debian/rules b/distro/debian/rules
index f9d6a98..2787180 100644
--- a/distro/debian/rules
+++ b/distro/debian/rules
@@ -14,12 +14,12 @@ PY3VER = $(shell py3versions -d)
 
 override_dh_auto_configure:
 	dh_auto_configure -Bbuild -- \
-            -DBUILD_DOC=OFF \
             -DCMAKE_SKIP_INSTALL_RPATH:BOOL=ON \
             -DCMAKE_INSTALL_PREFIX:PATH=/usr \
-            -DCMAKE_INSTALL_LIBDIR:PATH="lib/$(DEB_HOST_MULTIARCH)" \
-            -DINSTALL_DESTDIR:PATH=$(CURDIR)/debian/otmixmod \
-            -DPYTHON_SITE_PACKAGES:PATH="lib/$(PY3VER)/site-packages"
+            -DCMAKE_INSTALL_LIBDIR:PATH=lib/$(DEB_HOST_MULTIARCH) \
+            -DINSTALL_DESTDIR:PATH=$(CURDIR)/debian/ottemplate \
+            -DOTMIXMOD_PYTHON_MODULE_PATH=lib/python3/dist-packages \
+            -DCMAKE_UNITY_BUILD=ON
 
 override_dh_auto_build:
 	$(MAKE) -C build -j4
diff --git a/distro/rpm/otmixmod.spec b/distro/rpm/otmixmod.spec
index 92a8fe9..faa8781 100644
--- a/distro/rpm/otmixmod.spec
+++ b/distro/rpm/otmixmod.spec
@@ -7,17 +7,11 @@
 %endif
 
 %define __cmake %{_bindir}/cmake
-%define _cmake_lib_suffix64 -DLIB_SUFFIX=64
 %define cmake \
 CFLAGS="${CFLAGS:-%optflags}" ; export CFLAGS ; \
 CXXFLAGS="${CXXFLAGS:-%optflags}" ; export CXXFLAGS ; \
 FFLAGS="${FFLAGS:-%optflags}" ; export FFLAGS ; \
-%__cmake \\\
--DCMAKE_INSTALL_PREFIX:PATH=%{_prefix} \\\
-%if "%{?_lib}" == "lib64" \
-%{?_cmake_lib_suffix64} \\\
-%endif \
--DBUILD_SHARED_LIBS:BOOL=ON
+%__cmake -DCMAKE_INSTALL_PREFIX:PATH=%{_prefix}
 
 Name:           otmixmod
 Version:        0.18
@@ -66,7 +60,7 @@ Python textual interface to otmixmod uncertainty library
 %build
 %cmake -DINSTALL_DESTDIR:PATH=%{buildroot} \
        -DCMAKE_SKIP_INSTALL_RPATH:BOOL=ON \
-       -DBUILD_DOC=OFF .
+       -DCMAKE_UNITY_BUILD=ON .
 make %{?_smp_mflags}
 
 %install
diff --git a/python/src/MixtureFactory.i b/python/src/MixtureFactory.i
index 5ee5d6d..7cf59ce 100644
--- a/python/src/MixtureFactory.i
+++ b/python/src/MixtureFactory.i
@@ -2,8 +2,8 @@
 
 // do not pass argument by reference, return it as tuple item
 %typemap(in, numinputs=0) (OT::Indices & labels, OT::Point & BICLogLikelihood) ($*1_ltype temp1,$*2_ltype temp2) %{ temp1 = OT::Indices(); $1 = &temp1; temp2=OT::Point(); $2=&temp2; %} 
-%typemap(argout) (OT::Indices & labels, OT::Point & BICLogLikelihood) %{ $result = SWIG_Python_AppendOutput($result, SWIG_NewPointerObj(new OT::Indices(*$1), SWIG_TypeQuery("OT::Indices *"), SWIG_POINTER_OWN |  0 ));
-$result= SWIG_Python_AppendOutput($result, SWIG_NewPointerObj(new OT::Point(*$2), SWIG_TypeQuery("OT::Point *"), SWIG_POINTER_OWN |  0 )); %} 
+%typemap(argout) (OT::Indices & labels, OT::Point & BICLogLikelihood) %{ $result = OT::AppendOutput($result, SWIG_NewPointerObj(new OT::Indices(*$1), SWIG_TypeQuery("OT::Indices *"), SWIG_POINTER_OWN));
+$result = OT::AppendOutput($result, SWIG_NewPointerObj(new OT::Point(*$2), SWIG_TypeQuery("OT::Point *"), SWIG_POINTER_OWN)); %} 
 OT::Mixture OTMIXMOD::MixtureFactory::buildAsMixture(const OT::Sample & sample, OT::Indices & labels, OT::Point & BICLogLikelihood) const;
 OT::Implementation OTMIXMOD::MixtureFactory::build(const OT::Sample & sample, OT::Indices & labels, OT::Point & BICLogLikelihood) const;
 %ignore OTMIXMOD::MixtureFactory::buildAsMixture(const OT::Sample & sample) const;