Comment 1 for bug 1860200

We need to look into https://facebook.github.io/zstd as it seems to be the up and coming multithreaded compressor. It is in use now in the Linux kernel and other major software. It should be stable and hopefully have a long life.

A proper Python interface lives at https://pypi.python.org/pypi/zstandard.
We would still have to support gzip decompression for a long while.