2.9:
Changes to the library:
optimized the ArchiveEntry class
added support for the zstd format
fixed the top-level __all__ list (7b97d8b)
updated the code to support Python 3.8
improved the add_file_from_memory method
lowered the level of log messages from warning to info
Tests:
dropped testing with Python 3.4, added 3.7 and 3.8
fixed unicode handling in entry tests
Changes 2.8:
add support for setting atime, ctime, mtime and birthtime
tell libarchive when writing an archive is aborted due to an exception
add support for getting uid and gid
add support for high resolution timestamps
add two new archive readers: stream_reader and custom_reader
add missing archive extraction flags
add the lz4 and warc formats
add support for write options and uid/gid lookup