Below options are either dropped from support or have never worked in standard beats. Hence deprecate these parameters for beatreceivers.

• escpae_html: is not supported in beatreceivers. Final documents will never be parsed to escape HTML embeddings by default. See comment
  • www.elastic.co/docs/reference/fleet/elasticsearch-output#output-elasticsearch-data-parsing-settings
• pipeline and pipelines have never worked with standalone elastic-agent. Hence these also will not be supported in beatreceivers.
  • https://www.elastic.co/docs/reference/fleet/elasticsearch-output#output-elasticsearch-data-parsing-settings
• non_indexable_policy.dead_letter_index is in tech preview and we will not be supporting it in beatreceivers. Instead enable failure_store for data streams. See more info here https://www.elastic.co/docs/manage-data/data-store/data-streams/failure-store#use-failure-store
  • https://www.elastic.co/docs/reference/beats/filebeat/elasticsearch-output#_non_indexable_policy
• allow_older_version was introduced to force users to upgrade their elasticsearch stack. This is not required for beatreceivers. Hence this should be removed