> For the complete documentation index, see [llms.txt](https://docs.fluentd.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fluentd.org/appendix.md).

# Appendix

- [Update from v0.12 to v1](https://docs.fluentd.org/appendix/update-from-v0.12.md)
- [td-agent v2 vs v3 vs v4](https://docs.fluentd.org/appendix/td-agent-v2-vs-v3-vs-v4.md)