diff --git a/CMakePresets.json b/CMakePresets.json
index ede9472..0b645f2 100644
--- a/CMakePresets.json
+++ b/CMakePresets.json
@@ -7,7 +7,7 @@
       "generator": "Ninja",
       "binaryDir": "${sourceDir}/build/${presetName}",
       "cacheVariables": {
-        "CMAKE_CXX_STANDARD": "17"
+        "CMAKE_CXX_STANDARD": "20"
       }
     },
     {
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index b0c64eb..ba8168b 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -1,8 +1,21 @@
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-set(ALL_EXAMPLES # identity_as_default_projection
-    identity_direct_usage
-)
+set(ALL_EXAMPLES identity_direct_usage)
+
+# Example `identity_as_default_projection` need ranges support:
+include(CheckCXXSymbolExists)
+check_cxx_symbol_exists(__cpp_lib_ranges "ranges" HAS_RANGES)
+
+if(HAS_RANGES)
+    list(APPEND ALL_EXAMPLES identity_as_default_projection)
+else()
+    message(
+        WARNING
+        "Missing range support! Skip: identity_as_default_projection"
+    )
+endif()
+
+message("Examples to be built: ${ALL_EXAMPLES}")
 
 foreach(example ${ALL_EXAMPLES})
     add_executable(beman.exemplar.examples.${example})