Changes in 4.0.0 * Switch to semantic versioning
* SECURITY NOTES: emphasize the security context in the docs
* Support easy building from source code with CMake
* Support easy rebuilding the stubs from source with Podman/Docker
* Add integrated doctest C++ testing framework
* Add support for EFI files (PE x86; Kornel Pal)
* win32/pe and win64/pe: set correct SizeOfHeaders in the PE header
* bug fixes - see https://github.com/upx/upx/milestone/6
* bug fixes - see https://github.com/upx/upx/milestone/7