> For the complete documentation index, see [llms.txt](https://userguide.novabackup.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://userguide.novabackup.com/novabackup-components.md).

# NovaBACKUP Components

- [Supported NovaBACKUP versions & upgrade paths](https://userguide.novabackup.com/novabackup-components/supported-novabackup-versions-and-upgrade-paths.md)
- [Overview of the NovaBACKUP Components](https://userguide.novabackup.com/novabackup-components/overview-of-the-novabackup-components.md)
- [System Requirements](https://userguide.novabackup.com/novabackup-components/system-requirements.md)
- [Useful how-to articles](https://userguide.novabackup.com/novabackup-components/useful-how-to-articles.md): Useful how-to articles that apply to NovaBACKUP 21.x. The latest content is at the top of each section.