• Table of Contents
• Better Build Documentation
• Man Page Updates
• Better documentation conversions
• CMake-based install target
• CMake-based distribution building
• Command-line parsing for compress_program
• Extended Attribute interoperability
• Linux `FILE_OFFSET_BITS` intelligence
• Pax front-end
• cpio as archive translation
• Virtualizing archive_entry
• Filtering directory traversals in archive_read_disk
• Explicit read pipelines
• Encrypted backup support
• Multivolume Writing
• Multivolume Reading
• RMT support
• Seeking input files
• Seek in archives
• fadvise() and O_DIRECT
• File I/O strategy development
• MMap and async I/O performance experiments
• BSD-style long filename support for GNU ld and other ld implementations
• Single-pass ar writer