To try out Guile 2.2.0 easily from any GNU/Linux distro (from the full release notes):

    Bonus track!  This release also contains a new experiment, a binary
    installation package for the x86_64 architecture.
    
    The GNU Guix project (https://guixsd.org/) has assembled a graph of
    package definitions (for example, GCC, glibc, Guile, and so on) and is
    able to build that graph in an entirely deterministic way starting
    from only a handful of trusted bootstrap binaries.  Guix recently
    added a "guix pack" facility that can export build products from a
    Guix system, including all run-time dependencies.
    
    We have used the new "guix pack" to generate an experimental binary
    distribution for the Guile 2.2.0 release.  If you are on an x86_64
    system running GNU/Linux, begin by running the following commands:
    
      wget https://ftp.gnu.org/gnu/guile/guile-2.2.0-pack-x86_64-linux-gnu.tar.lz
      wget 
    https://ftp.gnu.org/gnu/guile/guile-2.2.0-pack-x86_64-linux-gnu.tar.lz.sig
      gpg --verify guile-2.2.0-pack-x86_64-linux-gnu.tar.lz.sig
    
    If verification fails, then see above for instructions on how to
    import the appropriate GPG key.  For reference, the pack's sha256sum
    is:
    
      c707b9cf6f97ecca3a4e3e704e62b83f95f1aec28ed1535f5d0a1d36af07a015  
    guile-2.2.0-pack-x86_64-linux-gnu.tar.lz
    
    Then in your root directory -- yes! -- do:
    
      cd /
      sudo tar xvf path/to/guile-2.2.0-pack-x86_64-linux-gnu.tar.lz
    
    This tarball will extract some paths into /gnu/store and also add a
    /opt/guile-2.2.0 symlink.  To run Guile, just invoke:
    
      /opt/guile-2.2.0/bin/guile
    
    Voilà!