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+CMake 3.4 Release Notes
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+***********************
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+
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+.. only:: html
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+
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+ .. contents::
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+
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+Changes made since CMake 3.4 include the following.
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+
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+New Features
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+============
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+
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+Generators
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+----------
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+
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+* The :generator:`Visual Studio 14 2015` generator learned to select
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+ a Windows 10 SDK based on the value of the :variable:`CMAKE_SYSTEM_VERSION`
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+ variable and the SDKs available on the host.
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+
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+* CMake learned rudimentary support for the Apple Swift language. When using
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+ the :generator:`Xcode` generator with Xcode 6.1 or higher, one may enable
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+ the ``Swift`` language with the :command:`enable_language` command or the
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+ :command:`project` command (this is an error with other generators or when
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+ Xcode is too old). Then one may list ``.swift`` source files in targets
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+ for compilation.
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+
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+Commands
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+--------
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+
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+* The :command:`find_program` command learned a ``NAMES_PER_DIR``
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+ option to consider all given ``NAMES`` in each directory before
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+ moving on to the next directory.
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+
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+* The :command:`get_filename_component` command learned a new ``BASE_DIR``
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+ subcommand. This is used to specify a base directory when calculating an
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+ absolute path from a relative path.
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+
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+* The :command:`if` command learned a new ``TEST`` operator that evaluates
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+ to true if a given test name has been defined by the :command:`add_test`
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+ command. See policy :policy:`CMP0064`.
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+
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+* The :command:`install(DIRECTORY)` command ``DESTINATION`` option learned to
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+ support :manual:`generator expressions <cmake-generator-expressions(7)>`.
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+
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+* The :command:`install(FILES)` command ``DESTINATION`` option learned to
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+ support :manual:`generator expressions <cmake-generator-expressions(7)>`.
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+
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+* The :command:`string` command learned a new ``APPEND`` subcommand.
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+
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+Variables
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+---------
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+
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+* The :ref:`Makefile Generators` and the :generator:`Ninja` generator
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+ learned to add compiler launcher tools like distcc and ccache along
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+ with the compiler for ``C`` and ``CXX`` languages. See the
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+ :variable:`CMAKE_<LANG>_COMPILER_LAUNCHER` variable and
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+ :prop_tgt:`<LANG>_COMPILER_LAUNCHER` target property for details.
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+
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+* New :variable:`CMAKE_LINK_SEARCH_START_STATIC` and
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+ :variable:`CMAKE_LINK_SEARCH_END_STATIC` variables were
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+ introduced to initialize the
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+ :prop_tgt:`LINK_SEARCH_START_STATIC` and
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+ :prop_tgt:`LINK_SEARCH_END_STATIC` target properties,
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+ respectively.
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+
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+Properties
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+----------
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+
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+* :ref:`Visual Studio Generators` learned to support additonal
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+ target properties to customize projects for NVIDIA Nsight
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+ Tegra Visual Studio Edition:
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+
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+ * :prop_tgt:`ANDROID_ANT_ADDITIONAL_OPTIONS`
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+ * :prop_tgt:`ANDROID_ARCH`
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+ * :prop_tgt:`ANDROID_ASSETS_DIRECTORIES`
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+ * :prop_tgt:`ANDROID_JAR_DEPENDENCIES`
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+ * :prop_tgt:`ANDROID_JAR_DIRECTORIES`
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+ * :prop_tgt:`ANDROID_JAVA_SOURCE_DIR`
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+ * :prop_tgt:`ANDROID_NATIVE_LIB_DEPENDENCIES`
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+ * :prop_tgt:`ANDROID_NATIVE_LIB_DIRECTORIES`
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+ * :prop_tgt:`ANDROID_PROCESS_MAX`
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+ * :prop_tgt:`ANDROID_PROGUARD`
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+ * :prop_tgt:`ANDROID_PROGUARD_CONFIG_PATH`
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+ * :prop_tgt:`ANDROID_SECURE_PROPS_PATH`
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+ * :prop_tgt:`ANDROID_SKIP_ANT_STEP`
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+ * :prop_tgt:`ANDROID_STL_TYPE`
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+
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+* The :prop_tgt:`ARCHIVE_OUTPUT_DIRECTORY`,
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+ :prop_tgt:`LIBRARY_OUTPUT_DIRECTORY`, and
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+ :prop_tgt:`RUNTIME_OUTPUT_DIRECTORY` target properties learned to
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+ support :manual:`generator expressions <cmake-generator-expressions(7)>`.
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+
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+* The :prop_tgt:`SOURCE_DIR` and :prop_tgt:`BINARY_DIR` target properties
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+ were introduced to allow project code to query where a target is defined.
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+
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+* The :prop_tgt:`OUTPUT_NAME` target property and its variants learned to
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+ support :manual:`generator expressions <cmake-generator-expressions(7)>`.
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+
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+* A :prop_gbl:`TARGET_MESSAGES` global property was added to tell the
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+ :ref:`Makefile Generators` whether to generate commands to print output
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+ after each target is completed.
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+
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+* On Windows with MS-compatible tools, CMake learned to optionally
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+ generate a module definition (``.def``) file for ``SHARED`` libraries.
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+ See the :prop_tgt:`WINDOWS_EXPORT_ALL_SYMBOLS` target property.
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+
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+Modules
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+-------
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+
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+* The :module:`ExternalProject` module :command:`ExternalProject_Add`
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+ function ``GIT_SUBMODULES`` option now also limits the set of
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+ submodules that are initialized in addition to the prior behavior
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+ of limiting the set of submodules that are updated.
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+
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+* The :module:`ExternalProject` module learned new ``USES_TERMINAL``
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+ arguments for giving steps exclusive terminal access. This is
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+ useful with the :generator:`Ninja` generator to monitor CMake
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+ superbuild progress and prevent CPU oversubscription.
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+
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+* The :module:`FindBISON` module ``BISON_TARGET`` macro learned a
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+ new ``DEFINES_FILE`` option to specify a custom output header
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+ to be generated.
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+
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+* The :module:`FindHDF5` module learend a new ``HDF5_PREFER_PARALLEL``
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+ option allowing users to specify that a parallel HDF5 tool is
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+ preferred if both are available.
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+
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+* The :module:`FindIce` module now provides imported targets.
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+
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+* The :module:`FindJava` module learned to optionally find
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+ the ``idlj`` and ``jarsigner`` tools.
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+
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+* The :module:`FindOpenSSL` module now provides imported targets.
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+
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+* The :module:`FindOpenSSL` module learned a new ``OPENSSL_USE_STATIC_LIBS``
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+ option to search only for static libraries.
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+
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+* The :module:`FindPkgConfig` learned a new :command:`pkg_get_variable`
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+ command which may be used to query for arbitrary variables from a package
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+ (such as for related tools or data and plugin install paths).
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+
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+* The :module:`FindProtobuf` module gained a new
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+ :command:`protobuf_generate_python` function to generate python
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+ sources from ``.proto`` files.
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+
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+* The :module:`FindTIFF` module learned to search separately for
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+ debug and release variants.
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+
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+* The :module:`FindwxWidgets` module learned to support version requests.
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+
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+* The :module:`FindXercesC` module learned to search separately for
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+ debug and release variants.
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+
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+* The :module:`FindZLIB` module learned to search separately for
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+ debug and release variants.
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+
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+* The :module:`GNUInstallDirs` module learned special default values
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+ for certain installation prefixes according to the `GNU Coding
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+ Standards`_ and the `Filesystem Hierarchy Standard`_.
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+
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+* The :module:`UseJava` module ``add_jar`` function learned
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+ to support response files (e.g. ``@srcs.txt``) for source
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+ specification.
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+
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+* The :module:`UseJava` module ``install_jar`` function learned
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+ new ``DESTINATION`` and ``COMPONENT`` options to specify
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+ the corresponding :command:`install` command options.
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+
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+* The :module:`UseJava` module gained a new ``create_javah``
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+ function to create C headers from Java classes.
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+
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+.. _`GNU Coding Standards`: https://www.gnu.org/prep/standards/html_node/Directory-Variables.html
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+.. _`Filesystem Hierarchy Standard`: https://refspecs.linuxfoundation.org/FHS_3.0/fhs/index.html
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+
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+Generator Expressions
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+---------------------
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+
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+* A new ``$<SHELL_PATH:...>``
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+ :manual:`generator expression <cmake-generator-expressions(7)>`
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+ has been added.
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+
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+CTest
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+-----
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+
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+* CTest learned to optionally measure the CPU load during parallel
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+ testing and avoid starting tests that may cause the load to exceed
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+ a given threshold. See the :manual:`ctest(1)` command ``--test-load``
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+ option, the ``TestLoad`` setting of the :ref:`CTest Test Step`,
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+ the :variable:`CTEST_TEST_LOAD` variable, and the ``TEST_LOAD``
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+ option of the :command:`ctest_test` command.
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+
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+* :manual:`ctest(1)` learned options
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+ ``--test-output-size-passed`` and ``--test-output-size-failed``
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+ to customize the limit on test output size submitted when
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+ running as a :ref:`Dashboard Client`.
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+
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+CPack
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+-----
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+
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+* The :module:`CPackDeb` module learned to set package dependencies
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+ per component. See variables:
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+
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+ * :variable:`CPACK_DEBIAN_<COMPONENT>_PACKAGE_BREAKS`
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+ * :variable:`CPACK_DEBIAN_<COMPONENT>_PACKAGE_CONFLICTS`
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+ * :variable:`CPACK_DEBIAN_<COMPONENT>_PACKAGE_ENHANCES`
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+ * :variable:`CPACK_DEBIAN_<COMPONENT>_PACKAGE_PREDEPENDS`
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+ * :variable:`CPACK_DEBIAN_<COMPONENT>_PACKAGE_PROVIDES`
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+ * :variable:`CPACK_DEBIAN_<COMPONENT>_PACKAGE_RECOMMENDS`
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+ * :variable:`CPACK_DEBIAN_<COMPONENT>_PACKAGE_REPLACES`
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+ * :variable:`CPACK_DEBIAN_<COMPONENT>_PACKAGE_SUGGESTS`
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+
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+* The :module:`CPack` module learned to package empty directories.
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+
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+* The :module:`CPack` module gained a new setting, ``CPACK_VERBATIM_VARIABLES``,
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+ which can be used to ensure the cpack program receives the settings' values
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+ exactly as they were set, even if they contain CMake-special characters.
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+ For compatibility, it's off by default.
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+
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+Other
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+-----
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+
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+* The :manual:`Compile Features <cmake-compile-features(7)>` functionality
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+ is now aware of features supported by GNU C compilers on Windows.
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+
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+* CMake learned to honor ``*.manifest`` source files with MSVC tools.
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+ Manifest files named as sources of ``.exe`` and ``.dll`` targets
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+ will be merged with linker-generated manifests and embedded in the
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+ binary.
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+
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+* The `Concurrent Fortran 77 <https://ccur.com>`__ compiler is now supported.
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+ Its :variable:`compiler id <CMAKE_<LANG>_COMPILER_ID>` is ``CCur``.
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+
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+* :manual:`cmake(1)` gained a new ``--trace-expand`` command line option
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+ that is like ``--trace`` but expands variable references in the output.
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+
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+Deprecated and Removed Features
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+===============================
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+
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+* The :module:`CMakeExpandImportedTargets` module is now documented
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+ as deprecated. See module documentation for an explanation.
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+
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+* The :variable:`CMAKE_USE_RELATIVE_PATHS` variable no longer has any
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+ effect. Previously it was partially implemented and unreliable.
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+
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+Other Changes
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+=============
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+
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+* The :module:`CheckFunctionExists`, :module:`CheckLibraryExists`,
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+ :module:`CheckSymbolExists`, and :module:`FindThreads` modules learned to
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+ work in environments where only CXX is enabled.
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+
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+* The :module:`CPackDeb` module now correctly excludes symlinks during package
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+ checksum calculation.
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+
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+* The :module:`CPackDeb` no longer uses fakeroot and system tar program for
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+ packaging.
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+
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+* The :module:`CPack` module no longer mangles settings with CMake-special
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+ characters when they're used as defaults for other settings. The macro
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+ ``cpack_set_if_not_set``, which was responsible for this, is now deprecated.
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+
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+* CMake no longer links executables with flags to export symbols
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+ unless the :prop_tgt:`ENABLE_EXPORTS` target property is set.
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+ See policy :policy:`CMP0065`.
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+
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+* The ``SONAME`` field is no longer set for ``MODULE`` libraries
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+ created with the :command:`add_library` command. ``MODULE``
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+ libraries are meant for explicit dynamic loading at runtime.
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+ They cannot be linked so ``SONAME`` is not useful.
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Brad King