> For the complete documentation index, see [llms.txt](https://docs.firmachain.org/master/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.firmachain.org/master/node-and-validators-guide/history.md).

# History

This document details the chain’s upgrade history and the past traces (e.g. terminated testnets etc.) of the project.