Since it has an (approved) open source license.
OpenSearch is a elasticsearch 7.10 fork and thus mostly backward compatible to elasticsearch 7 and has documentation on how to migrate (Migrating from Elasticsearch OSS to OpenSearch - OpenSearch documentation). It is community driven and widely used.
I found 3 other posts mentioning opensearch but no feature request.
- Is there anyone out there successfully using opensearch for zammad?
- To reduce support burden support for elasticsearch could be dropped in a future version of zammad?