Went through logstash and filtered one error at a time to collect a list of new warnings. Transient cluster settings have updated the following channels to ERROR level on all six cirrus clusters:
- org.elasticsearch.deprecation.search.sort.GeoDistanceSortBuilder
- org.elasticsearch.deprecation.common.ParseField
- org.elasticsearch.common.logging.DeprecationLogger
- org.elasticsearch.deprecation.index.query.functionscore.ScoreFunctionBuilder
- org.elasticsearch.deprecation.index.similarity.SimilarityService