diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 109b3ed2e..469ca7b46 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -60,17 +60,12 @@ jobs:
         cd /Library
         zip -q -r ${OLDPWD}/libdigidocpp.${{ matrix.target }}.zip libdigidocpp.*
     - name: Archive artifacts
-      if: matrix.target == 'macos'
-      uses: actions/upload-artifact@v4
-      with:
-        name: macOS
-        path: build/macos/libdigidocpp*.*
-    - name: Archive artifacts
-      if: matrix.target != 'macos'
       uses: actions/upload-artifact@v4
       with:
         name: ${{ matrix.target }}
-        path: libdigidocpp*.zip
+        path: |
+          build/macos/libdigidocpp*.*
+          libdigidocpp*.zip
   fedora:
     name: Build on Fedora ${{ matrix.container }}
     runs-on: ubuntu-latest
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1b9f06e04..77cf119be 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -78,6 +78,9 @@ find_package(SWIG)
 if(SWIG_FOUND)
     find_package(JNI)
     find_package(Python3 COMPONENTS Interpreter Development)
+    if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.24")
+        find_package(Python3 COMPONENTS Development.SABIModule)
+    endif()
 endif()
 
 find_package(Doxygen)
diff --git a/build.ps1 b/build.ps1
index a8b71976e..8d6e46da5 100644
--- a/build.ps1
+++ b/build.ps1
@@ -52,6 +52,7 @@ foreach($type in @("Debug", "RelWithDebInfo")) {
   $buildpath = $platform+$type
   & $vcvars $platform "&&" $cmake --fresh -B $buildpath -S $libdigidocpp "-G$generator" `
     "-DCMAKE_BUILD_TYPE=$type" `
+    "-DCMAKE_VERBOSE_MAKEFILE=YES" `
     "-DCMAKE_INSTALL_PREFIX=$platform" `
     "-DCMAKE_INSTALL_LIBDIR=bin" `
     "-DCMAKE_TOOLCHAIN_FILE=$vcpkg_dir/scripts/buildsystems/vcpkg.cmake" `
diff --git a/libdigidocpp.i b/libdigidocpp.i
index ef2e5884f..6f105691b 100644
--- a/libdigidocpp.i
+++ b/libdigidocpp.i
@@ -22,14 +22,8 @@
 %module(directors="1") digidoc
 
 %begin %{
-#ifdef _MSC_VER
-#if 1
 #define SWIG_PYTHON_INTERPRETER_NO_DEBUG
-#include <crtdefs.h>
-#else // Python debug symbols are installed
-#define PY_NO_LINK_LIB
-#endif
-#endif
+#define Py_LIMITED_API 0x03040000
 %}
 %{
 #include "libdigidocpp.i.h"
diff --git a/prepare_osx_build_environment.sh b/prepare_osx_build_environment.sh
index 1f6426a83..a1215e7ee 100755
--- a/prepare_osx_build_environment.sh
+++ b/prepare_osx_build_environment.sh
@@ -168,7 +168,7 @@ function openssl {
         do
             case "${ARGS}" in
             *simulator*) CC="" CFLAGS="-arch ${ARCH}" ./Configure iossimulator-xcrun --prefix=${TARGET_PATH} no-shared no-dso no-module no-engine no-tests no-ui-console enable-ec_nistp_64_gcc_128 ;;
-            *catalyst*) CC="" CFLAGS="-target ${ARCH}-apple-ios-macabi" ./Configure darwin64-${ARCH} --prefix=${TARGET_PATH} no-shared no-dso no-module no-engine no-tests no-ui-console enable-ec_nistp_64_gcc_128 ;;
+            *catalyst*) CC="" CFLAGS="-target ${ARCH}-apple-ios${IPHONEOS_DEPLOYMENT_TARGET}-macabi" ./Configure darwin64-${ARCH} --prefix=${TARGET_PATH} no-shared no-dso no-module no-engine no-tests no-ui-console enable-ec_nistp_64_gcc_128 ;;
             *iphone*) CC="" CFLAGS="" ./Configure ios64-xcrun --prefix=${TARGET_PATH} no-shared no-dso no-module no-engine no-tests no-ui-console enable-ec_nistp_64_gcc_128 ;;
             *) CC="" CFLAGS="" ./Configure darwin64-${ARCH} --prefix=${TARGET_PATH} shared no-module no-tests enable-ec_nistp_64_gcc_128
             esac
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index d457b3431..60a8dba4a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -198,7 +198,12 @@ if(SWIG_FOUND)
         set(CMAKE_SWIG_OUTDIR ${CMAKE_CURRENT_BINARY_DIR})
         swig_add_library(digidoc_python LANGUAGE python SOURCES ../libdigidocpp.i)
         target_compile_definitions(digidoc_python PRIVATE TARGET_NAME="$<TARGET_NAME:digidoc_python>")
-        target_link_libraries(digidoc_python digidocpp digidocpp_util digidocpp_ver Python3::Module)
+        target_link_libraries(digidoc_python digidocpp digidocpp_util digidocpp_ver)
+        if(TARGET Python3::SABIModule)
+            target_link_libraries(digidoc_python Python3::SABIModule)
+        else()
+            target_link_libraries(digidoc_python Python3::Module)
+        endif()
         #configure_file(setup.py.cmake setup.py)
         #install(CODE "execute_process(COMMAND python3 ${CMAKE_CURRENT_BINARY_DIR}/setup.py install)")
         if(NOT Python3_SITELIB)
diff --git a/src/XMLDocument.h b/src/XMLDocument.h
index 2cea1de81..63820d912 100644
--- a/src/XMLDocument.h
+++ b/src/XMLDocument.h
@@ -186,8 +186,8 @@ struct XMLElem
 
 struct XMLName
 {
-    std::string_view name;
-    std::string_view ns;
+    std::string_view name {};
+    std::string_view ns {};
 };
 
 struct XMLNode: public XMLElem<xmlNode>
diff --git a/src/XmlConf.cpp b/src/XmlConf.cpp
index 0dbd930a7..1a1ace3d6 100644
--- a/src/XmlConf.cpp
+++ b/src/XmlConf.cpp
@@ -600,7 +600,7 @@ SET1CONST(string, setProxyPass, proxyPass)
  * @fn void digidoc::XmlConfV5::setPKCS12Cert(const std::string &cert)
  * @copydoc digidoc::XmlConf::setPKCS12Cert(const std::string &cert)
  */
-SET1CONSTEX(string, setPKCS12Cert, {})
+SET1CONSTEX(string, setPKCS12Cert, (void)value)
 
 /**
  * @fn void digidoc::XmlConf::setPKCS12Pass(const std::string &pass)
@@ -625,7 +625,7 @@ SET1CONSTEX(string, setPKCS12Cert, {})
  * @fn void digidoc::XmlConfV5::setPKCS12Pass(const std::string &pass)
  * @copydoc digidoc::XmlConf::setPKCS12Pass(const std::string &pass)
  */
-SET1CONSTEX(string, setPKCS12Pass, {})
+SET1CONSTEX(string, setPKCS12Pass, (void)value)
 
 /**
  * @fn void digidoc::XmlConf::setTSUrl(const std::string &url)
@@ -700,7 +700,7 @@ SET1CONST(string, setVerifyServiceUri, verifyServiceUri)
  * @fn void digidoc::XmlConfV5::setPKCS12Disable(bool disable)
  * @copydoc digidoc::XmlConf::setPKCS12Disable(bool disable)
  */
-SET1EX(bool, setPKCS12Disable, {})
+SET1EX([[maybe_unused]] bool, setPKCS12Disable, {})
 
 /**
  * @fn void digidoc::XmlConf::setProxyTunnelSSL(bool enable)
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index e5849555c..ed94a3c18 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -12,8 +12,6 @@ target_link_libraries(TSLTests digidocpp digidocpp_util Boost::unit_test_framewo
 if(WIN32)
     string(REPLACE "/EHsc" "/EHa" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
     set_target_properties(unittests TSLTests PROPERTIES COMPILE_FLAGS "/bigobj")
-else()
-    set_target_properties(unittests TSLTests PROPERTIES COMPILE_FLAGS "-Wno-unused-parameter -Wno-unused-variable")
 endif()
 add_test(NAME runtest
     COMMAND ${CMAKE_CURRENT_BINARY_DIR}/unittests --build_info=YES --report_level=no --logger=${TEST_FORMAT},all,${CMAKE_CURRENT_BINARY_DIR}/libdigidocpp.xml -- ${CMAKE_CURRENT_SOURCE_DIR}/data