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Changes in 5.0.0 (20 Feb 2025):

  * ELF: use of memfd_create supports Enforcing mode of SELinux
  * ELF: two-step de-compression enables future per-PT_LOAD work
  * ELF: --unmap-all-pages completely avoids /proc/self/exe
  * ELF: PT_MIPS_ABIFLAGS is now forwarded into the compressed output;
    qemu-mips can choose the right floating-point emulation
  * ELF: many minor internal changes fix nits revealed by fuzzing
  * bug fixes - see https://github.com/upx/upx/milestone/18