[Koha] 18.11 - Indexing

Can someone point me to documentation on the current state of indexing for 18.11? I seem to recall a year or two ago some information on support for Solr and now I see some info on Elasticsearch. Are either of these fully supported for 18.11 or should I be sticking with tried and true Zebra for indexing? What are the plans for the future? I'm sorry if these questions have been covered before. I only check in with the Koha community when we upgrade in the Spring, so these may be fully discussed earlier. But I'm not seeing much in the documentation I've reviewed so far. Thanks, Tom -- *Tom Hanstra* *Sr. Systems Administrator* hanstra@nd.edu <http://library.nd.edu/>