v2.2.0

-- linux-centos7-x86_64 / gcc@9.3.0 -----------------------------
binutils@2.36.1
bzip2@1.0.8
ca-certificates-mozilla@2021-04-13
ccache@4.3
clingo-bootstrap@spack
curl@7.76.1
expat@2.3.0
file@5.40
gettext@0.21
git@2.31.1
gmake@4.3
gnupg@1.4.23
gzip@1.10
libbsd@0.11.3
libedit@3.1-20210216
libffi@3.3
libiconv@1.16
libidn2@2.3.0
libmd@1.0.3
libunistring@0.9.10
lz4@1.9.3
lzo@2.10
ncurses@6.2
openssh@8.5p1
openssl@1.1.1k
patch@2.7.6
patchelf@0.12
pcre2@10.36
py-boto3@1.17.27
py-botocore@1.20.27
py-jmespath@0.10.0
py-python-dateutil@2.8.1
py-s3transfer@0.3.4
py-six@1.15.0
py-urllib3@1.25.6
python@3.8.10
readline@8.1
sqlite@3.35.5
squashfs@4.4
tar@1.34
unzip@6.0
util-linux-uuid@2.36.2
xz@5.2.5
zlib@1.2.11
zstd@1.5.0