UPX is a powerful compression and decompression tool designed for Windows operating systems. It supports various executable formats and offers a range of new features and bug fixes.One of the notable updates is the introduction of the new format Mach/AMD64, which now supports 64-bit programs on Apple Macintosh. This allows users to compress and decompress 64-bit applications efficiently.Additionally, UPX now supports new formats Dylib/i386 and Dylib/ppc32, enabling the compression and decompression of shared libraries. This feature enhances the versatility of the tool and expands its compatibility with different executable formats.For Debian NSLU2 (etc.) Linux kernel users, UPX introduces the new format vmlinuz/armel. This format is specifically designed for Linux kernels and provides efficient compression and decompression capabilities.Furthermore, UPX now supports the bvmlinuz boot protocol 2.08 for 386 Linux kernel, allowing users to compress and decompress Linux kernels with ease.The extended ABI version 4 for armel-eabi ARM Linux ELF is another significant addition to UPX. This update enhances the compatibility and performance of the tool for ARM Linux ELF executables.In terms of bug fixes, UPX addresses various issues to ensure a smooth compression and decompression experience for users.UPX is a free and portable tool that offers excellent compression ratios and fast decompression speeds. It utilizes the NRV compression library, ensuring efficient compression services without any memory overhead or drawbacks.With its wide range of supported formats and powerful features, UPX is a reliable choice for users looking to compress and decompress executable files on Windows systems.
