I generally recommend the SpatialRecursivePrefixTreeFieldType
. It's better in many ways, but I wouldn't call it an "upgraded version of LatLonType
" since that wording suggests it is a derivative which totally false. It's documented here: http://wiki.apache.org/solr/SolrAdaptersForLuceneSpatial4 The main reason to use LatLonType
(perhaps in conjunction with the new field type) is for distance sorting/relevancy which is better implemented by LatLonType
still (as of Solr 4.3).
I don't see LatLonType
going away any time soon; Solr takes backwards compatibility pretty seriously.