logstash/docs/reference/upgrading-minor-versions.md

mapped_pages
https://www.elastic.co/guide/en/logstash/current/upgrading-minor-versions.html

Upgrading between minor versions [upgrading-minor-versions]

As a general rule, you can upgrade between minor versions (for example, 9.x to 9.y, where x < y) by simply installing the new release and restarting {{ls}}. {{ls}} typically maintains backwards compatibility for configuration settings and exported fields. Please review the release notes for potential exceptions.

Upgrading between non-consecutive major versions (7.x to 9.x, for example) is not supported.