Elasticsearch's ingest node, a component used for pre-indexing document processing, has been enhanced in version 6.5 with new capabilities, including conditional execution of processors using the Painless scripting language. This update allows processors to be skipped or executed based on specific conditions, such as renaming fields only if certain criteria are met, and enables the use of a drop processor to prevent indexing of unwanted documents. Additionally, the introduction of the pipeline processor facilitates the reuse and organization of multiple pipelines, while the dissect processor offers a simpler, potentially faster alternative to the Grok processor for parsing log lines. Other improvements in this release include the ability to set default pipelines for indexes, enhanced documentation, improved node-level statistics, updates to Kibana Console's auto-complete functionality, and a new Rally challenge for benchmarking Grok performance.