CMake 3.22 Release Notes ¶

Changes made since CMake 3.21 include the following.

New Features ¶

The cmake_host_system_information() command can now query OS identification variables from the /etc/os-release file.
The string(TIMESTAMP) command now supports the %V specifier for ISO 8601 week numbers.

The CMAKE_BUILD_TYPE environment variable was added to provide a default value for the CMAKE_BUILD_TYPE variable.
The CMAKE_CONFIGURATION_TYPES environment variable was added to provide a default value for the CMAKE_CONFIGURATION_TYPES variable.
The CMAKE_INSTALL_MODE environment variable was added to tell install() rules (implemented by file(INSTALL)) to install symbolic links instead of copying of files.
The CMAKE_<LANG>_LINK_WHAT_YOU_USE_FLAG and CMAKE_LINK_WHAT_YOU_USE_CHECK variables were added to control the linker flag and check used by the LINK_WHAT_YOU_USE target property.
The CMAKE_REQUIRE_FIND_PACKAGE_<PackageName> variable was added to turn a non-REQUIRED find_package() call into a REQUIRED one.

The <LANG>_EXTENSIONS target property is now initialized to CMAKE_<LANG>_EXTENSIONS_DEFAULT, detected from the compiler. See CMP0128.
The VS_SETTINGS source file property is now supported for all source file types. Previously it worked only for non-built sources.

The CMakeDependentOption module cmake_dependent_option() macro now supports full Condition Syntax. See policy CMP0127.
The FetchContent module now passes through the CMAKE_TLS_VERIFY, CMAKE_TLS_CAINFO, CMAKE_NETRC and CMAKE_NETRC_FILE variables (when defined) to the underlying ExternalProject sub-build. Previously, those variables were silently ignored by FetchContent.
The FindBLAS and FindLAPACK modules gained a BLA_SIZEOF_INTEGER option to find a BLAS/LAPACK whose ABI uses a specific integer size.
The FindJasper module now provides an imported target.
The FindMatlab module now provides imported targets.
The FindPkgConfig module gained a PKG_CONFIG_ARGN variable to specify arguments to pkg-config calls.
The GoogleTest module gtest_discover_tests() function gained a TEST_FILTER option to filter tests using --gtest_filter during test discovery.
The UseSWIG module, for Visual Studio Generators, can now use the swig tool to generate implicit dependencies.

ctest(1) learned to recognize labels attached to a test at run time. Previously it was only possible to attach labels to tests at configure time by using the LABELS test property. See Additional Test Measurements for more information.
ctest(1) learned to be able to modify the environment for a test through the ENVIRONMENT_MODIFICATION property. This is allows for updates to environment variables based on the environment present at test time.
The ctest_memcheck() command now also generates a DynamicAnalysis-Test.xml file which may be used to submit test results to CDash.

The CPack DEB Generator gained the option to set CPACK_DEBIAN_COMPRESSION_TYPE to zstd, which enables Zstandard compression for deb packages.
The CPack NSIS Generator gained a new CPACK_NSIS_IGNORE_LICENSE_PAGE variable to suppress the license page in the installer.
The CPack RPM Generator gained the CPACK_RPM_REQUIRES_EXCLUDE_FROM option to avoid scanning specific paths for dependencies.

The Visual Studio 10 2010 generator is now deprecated and will be removed in a future version of CMake.

The Compile Features functionality now correctly disables or enables compiler extensions when no standard level is specified and avoids unnecessarily adding language standard flags if the requested settings match the compiler's defaults. See CMP0128.
The Compile Features functionality now ignores features for languages that are not enabled.
The Ninja Generators now implement the edit_cache target using ccmake(1) if available.
The Ninja and NMake Makefiles generators now use the MSVC -external:I flag for system includes. This became available as of VS 16.10 (toolchain version 14.29.30037).
The CPack NSIS Generator now requires NSIS 3.03 or later.

Changes made since CMake 3.22.0 include the following.

This version made no changes to documented features or interfaces. Some implementation updates were made to support ecosystem changes and/or fix regressions.

The OLD behavior of CMP0128 was fixed to add flags even when the specified standard matches the compiler default.

The while() command again ignores errors in condition evaluation as CMake 3.21 and below did. This bug was fixed in 3.22.0, but exposed errors in existing projects. The fix has been reverted to restore compatibility. The fix may be restored in a future version of CMake via a policy.

These versions made no changes to documented features or interfaces. Some implementation updates were made to support ecosystem changes and/or fix regressions.