# Release History In this section you will find the release notes for each version we release under this major version. If you are looking for the release notes of previous major versions use the version switcher at the top left of this documentation book. Here is a breakdown of our major version releases. * [Versions 5.x](/5.4.0/release-history/5.x-versions.md) - Mar 2020 - May 2021 * [Versions 4.x](/5.4.0/release-history/4.x-versions.md) - Jun 2018 - Sept 2019 * [Versions 3.x](/5.4.0/release-history/3.x-versions.md) - Feb 2016 - Nov 2017 * [Versions 2.x](/5.4.0/release-history/2.x-versions.md) - June 2015 - Nov 2015 * [Versions 1.x](/5.4.0/release-history/1.x-versions.md) - Feb 2015 --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://commandbox.ortusbooks.com/5.4.0/release-history.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.