The latest release of Apache S2Graph (incubating) is 0.2.0-incubating (release notes)
Apache S2Graph (incubating) is released as a source artifact, and also through Maven.
It is essential that you verify the integrity of the downloaded files using the PGP or MD5 signatures. This signature should be matched against the KEYS file.
0.1.0-incubating released on Nov 13, 2016 (release notes)