Hi,
it is a great that Jena supports further the Full Text Search extension.
Therefore I suggest to update the documentation: if [1] refers to the
latest released Jena version (which is 3.10.0), then the supported
versions are *Lucene 7.4.0* and *Elasticsearch 6.4.2* (based on JENA-1621).
Here is the version compatibility matrix (based on my informations)
between Jena and the full text engines supported by Jena:
Note: Elasticsearch 6.6.0 is already released, I assume the next Jena
version will support Lucene 7.5
[1] https://jena.apache.org/documentation/query/text-query.html
Thank you!