diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6e6878ce..2a1bf11e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os-version: [2019, 2022]
+        os-version: [2022]
         build-config: [debug, release, relwithdebinfo]
         build-arch: [Win32, x64]
         build-tool: ["", "-T ClangCL"]
@@ -87,21 +87,6 @@ jobs:
             cxx: g++-13,
             install: gcc-13 g++-13
           }
-        - {
-            cc: clang-12,
-            cxx: clang++-12,
-            install: clang-12
-          }
-        - {
-            cc: clang-13,
-            cxx: clang++-13,
-            install: clang-13
-          }
-        - {
-            cc: clang-14,
-            cxx: clang++-14,
-            install: clang-14
-          }
         - {
             cc: clang-15,
             cxx: clang++-15,
@@ -173,8 +158,8 @@ jobs:
       CFLAGS: ${{ matrix.sanitizer.flags }}
       CXXFLAGS: ${{ matrix.sanitizer.flags }}
       LDFLAGS: ${{ matrix.sanitizer.flags }}
-      CC: clang
-      CXX: clang++
+      CC: clang-15
+      CXX: clang++-15
     strategy:
       fail-fast: false
       matrix:
@@ -197,7 +182,7 @@ jobs:
     - name: Install packages
       run: |
         sudo apt-get update
-        sudo apt-get install -y xorg-dev nasm libssl-dev
+        sudo apt-get install -y xorg-dev nasm libssl-dev clang-15
 
     - name: Versions
       run: |
@@ -232,8 +217,8 @@ jobs:
     needs: Ubuntu
     runs-on: ubuntu-latest
     env:
-      CC: clang
-      CXX: clang++
+      CC: clang-15
+      CXX: clang++-15
     strategy:
       fail-fast: false
 
@@ -241,7 +226,7 @@ jobs:
     - name: Install packages
       run: |
         sudo apt-get update
-        sudo apt-get install -y xorg-dev nasm libssl-dev
+        sudo apt-get install -y xorg-dev nasm libssl-dev clang-15
 
     - uses: actions/checkout@v3
       with:
diff --git a/sources/CMakeLists.txt b/sources/CMakeLists.txt
index ae09e140..a6446cf3 100644
--- a/sources/CMakeLists.txt
+++ b/sources/CMakeLists.txt
@@ -63,12 +63,6 @@ endif()
 if(MSVC)
 	set_source_files_properties(libcore/mesh/marchingCubes.cpp PROPERTIES COMPILE_FLAGS "/wd4244 /wd4267") # it includes file with weird extension which does not honor warnings disabled by pragma
 endif()
-try_compile(sourceLocationAvailable "${CMAKE_CURRENT_BINARY_DIR}/tryCompile" SOURCES "${CMAKE_CURRENT_LIST_DIR}/tryCompileSourceLocation.cpp" OUTPUT_VARIABLE sourceLocationMessages)
-if(NOT sourceLocationAvailable)
-	target_compile_definitions(cage-core PUBLIC GCHL_DUMMY_SOURCE_LOCATION)
-	message(STATUS "source location not available:")
-	message(STATUS "${sourceLocationMessages}")
-endif()
 cage_target_api_macro(cage-core CAGE_CORE_API)
 cage_ide_category(cage-core cage/libs)
 cage_ide_sort_files(cage-core)
diff --git a/sources/include/cage-core/core.h b/sources/include/cage-core/core.h
index a7bd7cd2..ea2ed2e5 100644
--- a/sources/include/cage-core/core.h
+++ b/sources/include/cage-core/core.h
@@ -4,15 +4,10 @@
 #include <compare>
 #include <cstdint>
 #include <limits>
+#include <source_location>
 #include <type_traits>
 #include <utility>
 
-#ifdef GCHL_DUMMY_SOURCE_LOCATION
-	#include "sourceLocationDummy.h"
-#else
-	#include <source_location>
-#endif
-
 #if defined(_MSC_VER)
 	#define CAGE_ASSUME_TRUE(EXPR) __assume((bool)(EXPR))
 #elif defined(__clang__)
diff --git a/sources/include/cage-core/sourceLocationDummy.h b/sources/include/cage-core/sourceLocationDummy.h
deleted file mode 100644
index f5089934..00000000
--- a/sources/include/cage-core/sourceLocationDummy.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef guard_source_location_dummy_dfrg4sd5g
-#define guard_source_location_dummy_dfrg4sd5g
-
-#include <cstdint>
-
-namespace std
-{
-	struct source_location
-	{
-		static constexpr source_location current() noexcept { return {}; }
-		constexpr source_location() noexcept {}
-		constexpr std::uint32_t line() const noexcept { return 0; }
-		constexpr std::uint32_t column() const noexcept { return 0; }
-		constexpr const char *file_name() const noexcept { return ""; }
-		constexpr const char *function_name() const noexcept { return ""; }
-	};
-}
-
-#endif // guard_source_location_dummy_dfrg4sd5g
diff --git a/sources/test-core/exceptions.cpp b/sources/test-core/exceptions.cpp
index f2090bcf..a7aa9d0e 100644
--- a/sources/test-core/exceptions.cpp
+++ b/sources/test-core/exceptions.cpp
@@ -67,11 +67,9 @@ void testExceptions()
 		}
 		catch (const Exception &e)
 		{
-#ifndef GCHL_DUMMY_SOURCE_LOCATION
 			CAGE_TEST(std::strcmp(e.location.file_name(), __FILE__) == 0);
 			CAGE_TEST(e.location.line() == 66); // marked line number
 			CAGE_TEST(isPattern(String(e.location.function_name()), "", "testExceptions", ""));
-#endif
 			CAGE_TEST(std::strcmp(e.message, "intentional") == 0);
 			CAGE_TEST(e.severity == SeverityEnum::Error);
 		}
@@ -92,11 +90,9 @@ void testExceptions()
 			}
 			catch (const Exception &e)
 			{
-	#ifndef GCHL_DUMMY_SOURCE_LOCATION
 				CAGE_TEST(std::strcmp(e.location.file_name(), __FILE__) == 0);
 				CAGE_TEST(e.location.line() == 17); // marked line number
 				CAGE_TEST(isPattern(String(e.location.function_name()), "", "assertFailureFunction", ""));
-	#endif
 				CAGE_TEST(e.severity == SeverityEnum::Critical);
 			}
 		}
diff --git a/sources/tryCompileSourceLocation.cpp b/sources/tryCompileSourceLocation.cpp
deleted file mode 100644
index 06fd4ba0..00000000
--- a/sources/tryCompileSourceLocation.cpp
+++ /dev/null
@@ -1,7 +0,0 @@
-#include <source_location>
-#include <string>
-
-void foo(const std::source_location &src = std::source_location::current());
-
-int main()
-{}