Logstash users often encounter limitations with existing filter plugins for data transformations, prompting them to either write custom plugins or use inline Ruby code in the pipeline configuration. While inline Ruby filters are simple to implement, they can lead to code duplication and increased complexity, making maintenance challenging. To address these issues, the ruby filter plugin version 3.1.0 introduces file-based scripting, which allows users to organize complex Ruby logic into separate files, enhancing reusability and maintainability. This method also supports parameterization and testing within the script files, providing a more robust solution compared to inline code. Despite its benefits, file-based scripting does not support third-party library integration or centralized pipeline management via the UI, but it is a significant improvement for Logstash users seeking to manage custom Ruby code effectively.