diff --git a/.github/workflows/presubmit.yml b/.github/workflows/presubmit.yml
index b47324c7..c4a4a97d 100644
--- a/.github/workflows/presubmit.yml
+++ b/.github/workflows/presubmit.yml
@@ -59,7 +59,7 @@ jobs:
         BIN: [64]
         STD:
           - C: 11 # Utils C library uses C11 functions (e.g. timespec_get)
-            CXX: 14
+            CXX: 14 # Utils C++ library uses C14 types (e.g. integer_sequence)
           - C: 17
             CXX: 17
         CONF:
@@ -616,7 +616,6 @@ jobs:
           cmake --build $GITHUB_WORKSPACE/build_install --config Debug --parallel `sysctl -n hw.logicalcpu` `if [[ "${{matrix.GEN}}" == "Xcode" ]]; then echo "-- -quiet"; fi;`
 
   python:
-    if: false
     name: Exercise Python examples on ${{matrix.os}}
     strategy:
       matrix:
@@ -653,7 +652,6 @@ jobs:
           done
 
   checkruby:
-    if: false
     name: Check Ruby Samples ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     strategy:
@@ -679,7 +677,6 @@ jobs:
         working-directory: ruby
 
   android:
-    if: false
     runs-on: ubuntu-latest
     needs: format
     strategy:
diff --git a/external/OpenCL-CLHPP b/external/OpenCL-CLHPP
index 375f6417..826abb16 160000
--- a/external/OpenCL-CLHPP
+++ b/external/OpenCL-CLHPP
@@ -1 +1 @@
-Subproject commit 375f6417322ce364c71aa1dca235d86179f1a64a
+Subproject commit 826abb167a253164e784e490eba208be138ea9af
diff --git a/samples/CMakeLists.txt b/samples/CMakeLists.txt
index 0834853a..b9635d99 100644
--- a/samples/CMakeLists.txt
+++ b/samples/CMakeLists.txt
@@ -130,17 +130,18 @@ macro(add_sample)
     )
 
     foreach(CONFIG ${OPENCL_SAMPLE_CONFIGS})
-        install(TARGETS ${OPENCL_SAMPLE_TARGET} CONFIGURATIONS ${CONFIG} DESTINATION ${CMAKE_INSTALL_BINDIR})
-        install(FILES ${OPENCL_SAMPLE_KERNELS} CONFIGURATIONS ${CONFIG} DESTINATION ${CMAKE_INSTALL_BINDIR})
-        install(FILES ${OPENCL_SAMPLE_SHADERS} CONFIGURATIONS ${CONFIG} DESTINATION ${CMAKE_INSTALL_BINDIR})
+        install(TARGETS ${OPENCL_SAMPLE_TARGET} CONFIGURATIONS ${CONFIG} DESTINATION ${CMAKE_INSTALL_BINDIR}/${CONFIG})
+        install(FILES ${OPENCL_SAMPLE_KERNELS} CONFIGURATIONS ${CONFIG} DESTINATION ${CMAKE_INSTALL_BINDIR}/${CONFIG})
+        install(FILES ${OPENCL_SAMPLE_SHADERS} CONFIGURATIONS ${CONFIG} DESTINATION ${CMAKE_INSTALL_BINDIR}/${CONFIG})
+        if(OPENCL_SDK_TEST_SAMPLES AND OPENCL_SAMPLE_TEST)
+            add_test(
+              NAME "${OPENCL_SAMPLE_TARGET}_${CONFIG}"
+              COMMAND ${OPENCL_SAMPLE_TARGET}
+              CONFIGURATIONS ${CONFIG}
+              WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
+            )
+        endif()
     endforeach()
-    if(OPENCL_SDK_TEST_SAMPLES AND OPENCL_SAMPLE_TEST)
-        add_test(
-          NAME ${OPENCL_SAMPLE_TARGET}
-          COMMAND ${OPENCL_SAMPLE_TARGET}
-          WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
-        )
-    endif()
 endmacro()
 
 
diff --git a/samples/core/blur/main.c b/samples/core/blur/main.c
index f6df0eaa..47b047f7 100644
--- a/samples/core/blur/main.c
+++ b/samples/core/blur/main.c
@@ -1119,8 +1119,9 @@ int main(int argc, char *argv[])
             printf("Dual-pass subgroup relative exchange blur\n");
 
             kernel_op[0] = '\0';
+            // cl_khr_subgroup_shuffle_relative requires OpenCL 2.0
+            strcat(kernel_op, " -cl-std=CL2.0 ");
             strcat(kernel_op, "-D USE_SUBGROUP_EXCHANGE_RELATIVE ");
-
             OCLERROR_RET(dual_pass_subgroup_exchange_box_blur(
                              &s, (cl_int)blur_opts.size),
                          error, prg);
@@ -1130,6 +1131,8 @@ int main(int argc, char *argv[])
             printf("Dual-pass subgroup exchange blur\n");
 
             kernel_op[0] = '\0';
+            // cl_khr_subgroup_shuffle requires OpenCL 2.0
+            strcat(kernel_op, " -cl-std=CL2.0 ");
             strcat(kernel_op, "-D USE_SUBGROUP_EXCHANGE ");
 
             OCLERROR_RET(dual_pass_subgroup_exchange_box_blur(
@@ -1173,6 +1176,8 @@ int main(int argc, char *argv[])
             printf("Dual-pass subgroup relative exchange Gaussian blur\n");
 
             kernel_op[0] = '\0';
+            // cl_khr_subgroup_shuffle_relative requires OpenCL 2.0
+            strcat(kernel_op, " -cl-std=CL2.0 ");
             strcat(kernel_op, "-D USE_SUBGROUP_EXCHANGE_RELATIVE ");
 
             OCLERROR_RET(dual_pass_subgroup_exchange_kernel_blur(&s, gauss_size,
@@ -1184,6 +1189,8 @@ int main(int argc, char *argv[])
             printf("Dual-pass subgroup exchange Gaussian blur\n");
 
             kernel_op[0] = '\0';
+            // cl_khr_subgroup_shuffle requires OpenCL 2.0
+            strcat(kernel_op, " -cl-std=CL2.0 ");
             strcat(kernel_op, "-D USE_SUBGROUP_EXCHANGE ");
 
             OCLERROR_RET(dual_pass_subgroup_exchange_kernel_blur(&s, gauss_size,
diff --git a/samples/core/blur/main.cpp b/samples/core/blur/main.cpp
index 1face850..1b724f17 100644
--- a/samples/core/blur/main.cpp
+++ b/samples/core/blur/main.cpp
@@ -89,8 +89,9 @@ int main(int argc, char* argv[])
             {
                 std::cout << "Dual-pass subgroup relative exchange blur"
                           << std::endl;
-
-                blur.build_program("-D USE_SUBGROUP_EXCHANGE_RELATIVE ");
+                // cl_khr_subgroup_shuffle_relative requires OpenCL 2.0
+                blur.build_program(
+                    "-D USE_SUBGROUP_EXCHANGE_RELATIVE -cl-std=CL2.0 ");
                 blur.dual_pass_subgroup_exchange_box_blur();
             }
 
@@ -99,8 +100,8 @@ int main(int argc, char* argv[])
             if (use_subgroup_exchange)
             {
                 std::cout << "Dual-pass subgroup exchange blur" << std::endl;
-
-                blur.build_program("-D USE_SUBGROUP_EXCHANGE ");
+                // cl_khr_subgroup_shuffle requires OpenCL 2.0
+                blur.build_program("-D USE_SUBGROUP_EXCHANGE -cl-std=CL2.0 ");
                 blur.dual_pass_subgroup_exchange_box_blur();
             }
         } // Box blur
@@ -137,8 +138,9 @@ int main(int argc, char* argv[])
                 std::cout
                     << "Dual-pass subgroup relative exchange Gaussian blur"
                     << std::endl;
-
-                blur.build_program("-D USE_SUBGROUP_EXCHANGE_RELATIVE ");
+                // cl_khr_subgroup_shuffle_relative requires OpenCL 2.0
+                blur.build_program(
+                    "-D USE_SUBGROUP_EXCHANGE_RELATIVE -cl-std=CL2.0 ");
                 blur.dual_pass_subgroup_exchange_kernel_blur();
             }
 
@@ -148,8 +150,8 @@ int main(int argc, char* argv[])
             {
                 std::cout << "Dual-pass subgroup exchange Gaussian blur"
                           << std::endl;
-
-                blur.build_program("-D USE_SUBGROUP_EXCHANGE ");
+                // cl_khr_subgroup_shuffle requires OpenCL 2.0
+                blur.build_program("-D USE_SUBGROUP_EXCHANGE -cl-std=CL2.0 ");
                 blur.dual_pass_subgroup_exchange_kernel_blur();
             }
         } // Gaussian blur