Elastic, the creator of the open source products Ealsticsearch and Kibana announced a change of the license which can be problematic to companies who made use of these products in the past.
source: https://anonymoushash.vmbrasseur.com/2021/01/14/elasticsearch-and-kibana-are-now-business-risks
archived source: https://wellthissucks.xyz/2021/01/01/elasticsearch-and-kibana-are-now-business-risks-archived-source/