* [fluent-plugin-rewrite-tag-filter v2.4.1](https://github.com/fluent/fluent-plugin-rewrite-tag-filter) – Fluentd output plugin that rewrites event tags by matching record fields against regular expressions and re-emits rewritten events.

* [Grok Parser for Fluentd v2.6.3](https://github.com/fluent/fluent-plugin-grok-parser) – Fluentd plugin implementing Logstash-style Grok parsing with support for multiple patterns and multiline grok processing.