> > > Anything else has been obsoleted and should be deprecated:
> > > * gzip is venerable and had seen so much use in the past that it
> > > won't ever go away.  But you shouldn't use it: it's speed is same
> > > as xz at level 2.5 but compression ratio is drastically worse.
> > > * bzip2 is drastically slower (esp. at decompression) than xz and
> > > zstd; it needs to die.
> > > * lzop had a good run but zstd is much stronger at same speed
> > > while lz4 is much faster.
> > > * lzip is a worse alternative to xz, peddled by a couple of trolls
> > > that send untruthful propaganda to projects, hoping people won't
> > > do research between accepting its use.  Just say no and use xz.
> > > * ncompress is completely dead by now.
> > > * zip is used by Windows folks only, similar to gzip.
> > > * rar is unfree.
> > > * 7z is similar but incompatible to xz; also a container rather
> > > than a pure compressor.