The binary version for MySQL Cluster 7.1.17 has now been made available at http://www.mysql.com/downloads/cluster/ (GPL version) or https://support.oracle.com/ (commercial version)
A description of all of the changes (fixes) that have gone into MySQL Cluster 7.1.17 (compared to 7.1.15a) can be found by combining the summaries from the official MySQL Cluster documentation for Cluster – 7.1.16 Change log & 7.1.17 Change log.