v6.6.1 13th April 2022
  - The latest version of ABI v13 is v13.3.1.
  - The latest version of ABI v12 is v12.10.1.
  - Bug fixes.

v6.6.0 1st April 2022
  - Python v3.6 is no longer supported.
  - The .sip file parser (created using flex and bison) has been replaced with
    a pure Python implementation using PLY.
  - The latest version of ABI v13 is v13.3.0.
  - The latest version of ABI v12 is v12.10.0.
  - Bug fixes.

v6.5.1 25th January 2022
  - Added the --no-compile command line option to sip-build.
  - Added the --no-version-info command line option to sip-build.
  - The latest version of ABI v13 is v13.2.1.
  - The latest version of ABI v12 is v12.9.1.
  - Bug fixes.

v6.5.0 25th November 2021
  - Added 'UIntEnum' as a value of the /BaseType/ enum annotation to support
    enum.IntEnum types with unsigned values.
  - The latest version of ABI v13 is v13.2.0.
  - Bug fixes.

v6.4.0 24th October 2021
  - Added support for the 'py_ssize_t_clean' argument to the '%Module'
    directive.
  - Bug fixes.

v6.3.1 13th October 2021
  - Bug fixes.

v6.3.0 5th October 2021
  - SIP itself now uses the limited API itself.
  - Added the Project.get_platform_tag() method to the sipbuild API.

v6.2.0 28th September 2021
  - The interpreter tag in the name of a wheel now specifies a minimum Python
    version (rather than each supported Python version) when the limited API is
    used.
  - The /PyQtNoQMetaObject/ annotation can now be applied to namespaces.
  - sip-build, sip-install and sip-wheel now support the --disabled-feature
    command line option.
  - Added support for Python v3.10.
  - Added the setuptools builder which is the default for Python v3.10 and
    later.
  - The ABI version, wherever specified, is now a minimum version with a
    default minor version of 0.
  - Bug fixes.

v6.1.1 9th June 2021
  - The abi-version project option is interpreted as a minimum version rather
    than an exact version.
  - Bug fixes.

v6.1.0 5th May 2021
  - Added support for the noexcept specifier.  This has the same effect as a
    throw specifier that has no arguments.
  - throw specifiers in .sip files are now ignored when using ABI v13.1 or
    later and v12.9 or later.
  - Added the scripts-dir project option for specifying the directory where
    scripts are installed.  There is a corresponding --scripts-dir command line
    option to sip-build and sip-install.
  - The build tools (sip-build, sip-install, sip-sdist and sip-wheel) may now
    be invoked using the '-m' command line option of the Python interpreter.
  - The latest version of ABI v13 is v13.1.0.
  - The latest version of ABI v12 is v12.9.0.
  - If C++ exceptions are used then a C++11 compiler is required.
  - Bug fixes.

v6.0.3 2nd March 2021
  - The distutils builder now respects the minimum-macos-version option.
  - Bug fixes.

v6.0.2 23rd February 2021
  - Bug fixes.

v6.0.1 5th February 2021
  - The latest version of ABI v13 is v13.0.1.
  - Bug fixes.

v6.0.0 4th January 2021
  - All features deprecated in SIP v5 have been removed.
  - Added ABI v13.0 of the sip module.  This uses the Python enum module to
    implement all enums.
  - Added support for mapped type convertors to have additional user-defined
    state.  This is implemented using the %ReleaseCode directive, the SIP_USER
    flag and the sipConvertToTypeUS(), sipForceConvertToTypeUS() and
    sipReleaseTypeUS() API functions.  (ABI v13 only.)
  - %ConvertFromTypeCode and %ConvertToTypeCode are now optional for mapped
    types.
  - Added support for the SIP_PYENUM additional SIP type.
  - Added and sipIsEnumFlag()
  - Added the /BaseType/ enum annotation for specifying the exact Python enum
    type to be used.  (ABI v13 only.)
  - Added support for wrapping named unions.
  - Added support for Py_hash_t.  (ABI v13 only.)
  - Python names automatically have a '_' appended if they are Python keywords.
  - The lexer can now handle '\xNN' characters.
  - sip.pyi and py.typed are automatically installed if dunder-init is
    specified and pep484-pyi is specified for at least one module.
