xtensor-stack · JohanMabille · Jun 19, 2026 · Jun 17, 2026 · Jun 18, 2026 · Jun 18, 2026
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
@@ -16,12 +16,12 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-22.04, macos-12]
+        os: [ubuntu-24.04, macos-15]
 
     steps:
 
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Set conda environment
       uses: mamba-org/setup-micromamba@main
@@ -30,7 +30,7 @@ jobs:
         environment-file: environment-dev.yml
 
     - name: Configure using CMake
-      run: cmake -G Ninja -Bbuild -DCMAKE_INSTALL_PREFIX=$CONDA_PREFIX -DDOWNLOAD_GTEST=ON -DHAVE_ALL_DEPS=ON
+      run: cmake -G Ninja -Bbuild -DCMAKE_PREFIX_PATH=$CONDA_PREFIX -DCMAKE_INSTALL_PREFIX=$CONDA_PREFIX -DDOWNLOAD_GTEST=ON -DHAVE_ALL_DEPS=ON
 
     - name: Generate data for zlib test
       working-directory: build/test

diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -7,7 +7,7 @@
 # The full license is in the file LICENSE, distributed with this software. #
 ############################################################################
 
-cmake_minimum_required(VERSION 3.8)
+cmake_minimum_required(VERSION 3.30)
 project(xtensor-io)
 
 set(XTENSOR_IO_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/include)
@@ -121,6 +121,7 @@ endforeach()
 set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH}" "${CMAKE_SOURCE_DIR}/modules")
 
 add_library(xtensor-io INTERFACE)
+target_compile_features(xtensor-io INTERFACE cxx_std_17)
 
 include_directories(${GTEST_INCLUDE_DIRS})
 
@@ -197,18 +198,8 @@ endif()
 
 if(HAVE_HighFive)
   find_package(HighFive REQUIRED)
-  find_package(HDF5 REQUIRED)
-  message(STATUS "HighFive ${HighFive_VERSION} and HDF5 ${HDF5_VERSION} found, HDF5 file support enabled")
-  find_package(HDF5 REQUIRED)
-  get_target_property(HighFive_INCLUDE_DIRECTORIES_EXTRACTED HighFive INTERFACE_INCLUDE_DIRECTORIES)
-  target_include_directories(xtensor-io
-      INTERFACE
-      ${HighFive_INCLUDE_DIRECTORIES_EXTRACTED}
-  )
-  target_link_libraries(xtensor-io
-      INTERFACE
-      ${HDF5_LIBRARIES}
-  )
+  message(STATUS "HighFive ${HighFive_VERSION} found, HDF5 file support enabled")
+  target_link_libraries(xtensor-io INTERFACE HighFive::HighFive)
 else()
   message(STATUS "HighFive not enabled: use -DHAVE_HighFive=ON for HDF5 file support")
 endif()
@@ -245,15 +236,11 @@ else()
 endif()
 
 if(HAVE_storage_client)
-  find_package(storage_client REQUIRED)
-  message(STATUS "storage_client ${storage_client_VERSION} found, Google Cloud Storage IO handler support enabled")
-  target_include_directories(xtensor-io
-    INTERFACE
-      ${storage_client_INCLUDE_DIRS}
-  )
+  find_package(google_cloud_cpp_storage REQUIRED)
+  message(STATUS "google_cloud_cpp_storage ${google_cloud_cpp_storage_VERSION} found, Google Cloud Storage IO handler support enabled")
   target_link_libraries(xtensor-io
     INTERFACE
-      storage_client
+      google-cloud-cpp::storage
   )
 else()
   message(STATUS "storage_client not enabled: use -DHAVE_storage_client=ON for Google Cloud Storage IO handler support")

diff --git a/environment-dev.yml b/environment-dev.yml
@@ -6,15 +6,16 @@ dependencies:
   - cmake
   - ninja
   # Host dependencies
-  - openimageio=2.2.7
-  - libsndfile=1.0.30
-  - zlib=1.2.11
-  - highfive=2.1.1 
+  - openimageio >=3.0,<4
+  - fmt
+  - libsndfile
+  - zlib
+  - highfive
   - blosc
   - gdal
   - nlohmann_json
-  - google-cloud-cpp=1.21.0
+  - google-cloud-cpp >=3.0,<4
   - aws-sdk-cpp
-  - xtensor=0.25.0
+  - xtensor=0.26.0
   - cpp-filesystem
 
diff --git a/include/xtensor-io/xaudio.hpp b/include/xtensor-io/xaudio.hpp
@@ -15,9 +15,9 @@
 
 #include <sndfile.hh>
 
-#include <xtensor/xarray.hpp>
-#include <xtensor/xtensor.hpp>
-#include <xtensor/xeval.hpp>
+#include <xtensor/containers/xarray.hpp>
+#include <xtensor/containers/xtensor.hpp>
+#include <xtensor/core/xeval.hpp>
 
 #include "xtensor_io_config.hpp"
 

diff --git a/include/xtensor-io/xchunk_store_manager.hpp b/include/xtensor-io/xchunk_store_manager.hpp
@@ -8,8 +8,8 @@
 
 #include <xtl/xsequence.hpp>
 
-#include "xtensor/xarray.hpp"
-#include "xtensor/xchunked_array.hpp"
+#include "xtensor/containers/xarray.hpp"
+#include "xtensor/chunk/xchunked_array.hpp"
 #include "xfile_array.hpp"
 
 namespace xt

diff --git a/include/xtensor-io/xfile_array.hpp b/include/xtensor-io/xfile_array.hpp
@@ -7,8 +7,8 @@
 
 #include <xtl/xtype_traits.hpp>
 
-#include <xtensor/xarray.hpp>
-#include <xtensor/xnoalias.hpp>
+#include <xtensor/containers/xarray.hpp>
+#include <xtensor/core/xnoalias.hpp>
 
 namespace xt
 {

diff --git a/include/xtensor-io/xgdal.hpp b/include/xtensor-io/xgdal.hpp
@@ -14,7 +14,7 @@
 #include <functional>
 #include <map>
 
-#include <xtensor/xtensor.hpp>
+#include <xtensor/containers/xtensor.hpp>
 #include "xtensor-io.hpp"
 
 // We rely exclusively on the stable C interface to GDAL.

diff --git a/include/xtensor-io/xhighfive.hpp b/include/xtensor-io/xhighfive.hpp
@@ -18,8 +18,8 @@
 #include <highfive/H5File.hpp>
 #include <highfive/H5Easy.hpp>
 
-#include <xtensor/xarray.hpp>
-#include <xtensor/xtensor.hpp>
+#include <xtensor/containers/xarray.hpp>
+#include <xtensor/containers/xtensor.hpp>
 
 #include "xtensor-io.hpp"
 

diff --git a/include/xtensor-io/ximage.hpp b/include/xtensor-io/ximage.hpp
@@ -15,9 +15,9 @@
 #include <string>
 #include <memory>
 
-#include <xtensor/xarray.hpp>
-#include <xtensor/xmath.hpp>
-#include <xtensor/xeval.hpp>
+#include <xtensor/containers/xarray.hpp>
+#include <xtensor/core/xeval.hpp>
+#include <xtensor/core/xmath.hpp>
 
 #include "xtensor_io_config.hpp"
 
@@ -62,7 +62,7 @@ namespace xt
                                             static_cast<std::size_t>(spec.width),
                                             static_cast<std::size_t>(spec.nchannels)});
 
-        in->read_image(OIIO::BaseTypeFromC<T>::value, image.data());
+        in->read_image(0, 0, 0, spec.nchannels, OIIO::BaseTypeFromC<T>::value, image.data());
 
         in->close(); 
 

diff --git a/include/xtensor-io/xio_aws_handler.hpp b/include/xtensor-io/xio_aws_handler.hpp
@@ -1,8 +1,8 @@
 #ifndef XTENSOR_IO_AWS_HANDLER_HPP
 #define XTENSOR_IO_AWS_HANDLER_HPP
 
-#include <xtensor/xarray.hpp>
-#include <xtensor/xexpression.hpp>
+#include <xtensor/containers/xarray.hpp>
+#include <xtensor/core/xexpression.hpp>
 #include <aws/core/Aws.h>
 #include <aws/s3/S3Client.h>
 #include <aws/s3/model/GetObjectRequest.h>

diff --git a/include/xtensor-io/xio_binary.hpp b/include/xtensor-io/xio_binary.hpp
@@ -12,7 +12,7 @@
 
 #include <fstream>
 
-#include "xtensor/xadapt.hpp"
+#include "xtensor/containers/xadapt.hpp"
 #include "xtensor-io.hpp"
 #include "xfile_array.hpp"
 #include "xio_stream_wrapper.hpp"

diff --git a/include/xtensor-io/xio_blosc.hpp b/include/xtensor-io/xio_blosc.hpp
@@ -12,7 +12,7 @@
 
 #include <fstream>
 
-#include "xtensor/xadapt.hpp"
+#include "xtensor/containers/xadapt.hpp"
 #include "xtensor-io.hpp"
 #include "xfile_array.hpp"
 #include "blosc.h"

diff --git a/include/xtensor-io/xio_disk_handler.hpp b/include/xtensor-io/xio_disk_handler.hpp
@@ -2,8 +2,8 @@
 #define XTENSOR_IO_DISK_HANDLER_HPP
 
 #include <ghc/filesystem.hpp>
-#include <xtensor/xarray.hpp>
-#include <xtensor/xexpression.hpp>
+#include <xtensor/containers/xarray.hpp>
+#include <xtensor/core/xexpression.hpp>
 #include "xio_stream_wrapper.hpp"
 #include "xfile_array.hpp"
 

diff --git a/include/xtensor-io/xio_gcs_handler.hpp b/include/xtensor-io/xio_gcs_handler.hpp
@@ -1,9 +1,10 @@
 #ifndef XTENSOR_IO_GCS_HANDLER_HPP
 #define XTENSOR_IO_GCS_HANDLER_HPP
 
-#include <xtensor/xarray.hpp>
-#include <xtensor/xexpression.hpp>
+#include <xtensor/containers/xarray.hpp>
+#include <xtensor/core/xexpression.hpp>
 #include <google/cloud/storage/client.h>
+#include <google/cloud/credentials.h>
 #include "xfile_array.hpp"
 #include "xio_stream_wrapper.hpp"
 
@@ -43,7 +44,7 @@ namespace xt
 
     template <class C>
     xio_gcs_handler<C>::xio_gcs_handler()
-        : m_client(gcs::ClientOptions((gcs::oauth2::CreateAnonymousCredentials())))
+        : m_client(google::cloud::Options{}.set<google::cloud::UnifiedCredentialsOption>(google::cloud::MakeInsecureCredentials()))
     {
     }
 

diff --git a/include/xtensor-io/xio_gdal_handler.hpp b/include/xtensor-io/xio_gdal_handler.hpp
@@ -1,8 +1,8 @@
 #ifndef XTENSOR_IO_GDAL_HANDLER_HPP
 #define XTENSOR_IO_GDAL_HANDLER_HPP
 
-#include <xtensor/xarray.hpp>
-#include <xtensor/xexpression.hpp>
+#include <xtensor/containers/xarray.hpp>
+#include <xtensor/core/xexpression.hpp>
 #include "xfile_array.hpp"
 #include "xio_vsilfile_wrapper.hpp"
 

diff --git a/include/xtensor-io/xio_gzip.hpp b/include/xtensor-io/xio_gzip.hpp
@@ -14,7 +14,7 @@
 
 #include "zlib.h"
 
-#include "xtensor/xadapt.hpp"
+#include "xtensor/containers/xadapt.hpp"
 #include "xtensor-io.hpp"
 #include "xfile_array.hpp"
 #include "xio_stream_wrapper.hpp"

diff --git a/include/xtensor-io/xio_zlib.hpp b/include/xtensor-io/xio_zlib.hpp
@@ -14,7 +14,7 @@
 
 #include "zlib.h"
 
-#include "xtensor/xadapt.hpp"
+#include "xtensor/containers/xadapt.hpp"
 #include "xtensor-io.hpp"
 #include "xfile_array.hpp"
 #include "xio_stream_wrapper.hpp"

diff --git a/include/xtensor-io/xnpz.hpp b/include/xtensor-io/xnpz.hpp
@@ -27,7 +27,7 @@
 
 #include "thirdparty/zstr/zstr.hpp"
 
-#include <xtensor/xnpy.hpp>
+#include <xtensor/io/xnpy.hpp>
 
 #include "xtensor_io_config.hpp"
 

diff --git a/modules/FindBlosc.cmake b/modules/FindBlosc.cmake
@@ -71,7 +71,7 @@ may be provided to tell this module where to look.
 
 #]=======================================================================]
 
-cmake_minimum_required(VERSION 3.3)
+cmake_minimum_required(VERSION 3.30)
 include(GNUInstallDirs)
 
 # Monitoring <PackageName>_ROOT variables

diff --git a/modules/FindSndFile.cmake b/modules/FindSndFile.cmake
@@ -36,4 +36,4 @@ endif(LIBSNDFILE_FOUND)
 
 mark_as_advanced(LIBSNDFILE_LIBRARY LIBSNDFILE_LIBRARIES LIBSNDFILE_INCLUDE_DIR LIBSNDFILE_INCLUDE_DIRS)
 
-unset(_LIBSNDFILE_HINTS)
+unset(_LIBSNDFILE_HINTS)
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
@@ -7,7 +7,7 @@
 # The full license is in the file LICENSE, distributed with this software. #
 ############################################################################
 
-cmake_minimum_required(VERSION 3.8)
+cmake_minimum_required(VERSION 3.30)
 
 if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
     project(xtensor-io-test)
@@ -25,12 +25,12 @@ string(TOUPPER "${CMAKE_BUILD_TYPE}" U_CMAKE_BUILD_TYPE)
 
 if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU" OR CMAKE_CXX_COMPILER_ID MATCHES "Intel")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native -Wunused-parameter -Wextra -Wreorder -Wconversion -Wsign-conversion")
-    CHECK_CXX_COMPILER_FLAG("-std=c++14" HAS_CPP14_FLAG)
+    CHECK_CXX_COMPILER_FLAG("-std=c++17" HAS_CPP17_FLAG)
 
-    if (HAS_CPP14_FLAG)
-        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
+    if (HAS_CPP17_FLAG)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
     else()
-        message(FATAL_ERROR "Unsupported compiler -- xtensor requires C++14 support!")
+        message(FATAL_ERROR "Unsupported compiler -- xtensor requires C++17 support!")
     endif()
 endif()
 

diff --git a/test/downloadGTest.cmake.in b/test/downloadGTest.cmake.in
@@ -7,14 +7,16 @@
 # The full license is in the file LICENSE, distributed with this software. #
 ############################################################################
 
-cmake_minimum_required(VERSION 2.8.2)
+cmake_minimum_required(VERSION 3.30)
 
 project(googletest-download NONE)
 
 include(ExternalProject)
 ExternalProject_Add(googletest
-    GIT_REPOSITORY    https://github.com/JohanMabille/googletest.git
-    GIT_TAG           warnings
+    #GIT_REPOSITORY    https://github.com/JohanMabille/googletest.git
+    GIT_REPOSITORY    https://github.com/google/googletest.git
+    #GIT_TAG           warnings
+    GIT_TAG           v1.15.2 
     SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/googletest-src"
     BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/googletest-build"
     CONFIGURE_COMMAND ""

diff --git a/test/test_xaudio.cpp b/test/test_xaudio.cpp
@@ -9,7 +9,7 @@
 
 #include "gtest/gtest.h"
 #include "xtensor-io/xaudio.hpp"
-#include "xtensor/xio.hpp"
+#include "xtensor/io/xio.hpp"
 
 namespace xt
 {

diff --git a/test/test_xchunk_store_manager.cpp b/test/test_xchunk_store_manager.cpp
@@ -9,7 +9,7 @@
 
 #include "gtest/gtest.h"
 
-#include <xtensor/xbroadcast.hpp>
+#include <xtensor/views/xbroadcast.hpp>
 #include "xtensor-io/xchunk_store_manager.hpp"
 #include "xtensor-io/xfile_array.hpp"
 #include <xtensor-io/xio_binary.hpp>

diff --git a/test/test_xfile_array.cpp b/test/test_xfile_array.cpp
@@ -9,9 +9,9 @@
 
 #include "gtest/gtest.h"
 
-#include <xtensor/xbroadcast.hpp>
+#include <xtensor/views/xbroadcast.hpp>
 #include "xtensor-io/xfile_array.hpp"
-#include <xtensor-io/xio_binary.hpp>
+#include "xtensor-io/xio_binary.hpp"
 #include "xtensor-io/xio_disk_handler.hpp"
 
 namespace xt

diff --git a/test/test_xgdal.cpp b/test/test_xgdal.cpp
@@ -1,7 +1,7 @@
 #include "gtest/gtest.h"
 #include "xtensor-io/xgdal.hpp"
-#include "xtensor/xadapt.hpp"
-#include "xtensor/xoperation.hpp"
+#include "xtensor/containers/xadapt.hpp"
+#include "xtensor/core/xoperation.hpp"
 
 #include <gdal_frmts.h>
 

diff --git a/test/test_xhighfive.cpp b/test/test_xhighfive.cpp
@@ -12,7 +12,7 @@
 #include <exception>
 
 #include "gtest/gtest.h"
-#include "xtensor/xrandom.hpp"
+#include "xtensor/generators/xrandom.hpp"
 #include "xtensor-io/xhighfive.hpp"
 
 namespace xt
Original file line number	Diff line number	Diff line change
Expand Up		@@ -36,4 +36,4 @@ endif(LIBSNDFILE_FOUND)

		mark_as_advanced(LIBSNDFILE_LIBRARY LIBSNDFILE_LIBRARIES LIBSNDFILE_INCLUDE_DIR LIBSNDFILE_INCLUDE_DIRS)

		unset(_LIBSNDFILE_HINTS)
		unset(_LIBSNDFILE_HINTS)