> For the complete documentation index, see [llms.txt](https://docs.cronos-pos.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cronos-pos.org/for-node-hosts/getting-started/mainnet/upgrade-guide.md).

# Upgrade Guide

- [The "V8" upgrade guide (v7.2.0 to v8.0.0)](https://docs.cronos-pos.org/for-node-hosts/getting-started/mainnet/upgrade-guide/upgrade_guide_v4.md)
- [The "V7" upgrade guide (v6.0.\* to v7.2.0)](https://docs.cronos-pos.org/for-node-hosts/getting-started/mainnet/upgrade-guide/upgrade_guide_v4-1.md)
- [The "V6" upgrade guide (v5.0.1 to v6.0.0-2) :](https://docs.cronos-pos.org/for-node-hosts/getting-started/mainnet/upgrade-guide/upgrade_guide_v4-2.md)
- [The "V5" upgrade guide (v4.\* to v5.0.1) :](https://docs.cronos-pos.org/for-node-hosts/getting-started/mainnet/upgrade-guide/upgrade_guide_v4-3.md)
- [The "V4" upgrade guide (v3.\* to v4.2.2) :](https://docs.cronos-pos.org/for-node-hosts/getting-started/mainnet/upgrade-guide/upgrade_guide_v4-4.md)
- [The "DRACO II" upgrade guide (v2.\* to v3.3.2) :](https://docs.cronos-pos.org/for-node-hosts/getting-started/mainnet/upgrade-guide/upgrade_guide_draco_2.md)
- [The "Canis Major" upgrade guide (v1.\* to v2.0.1) at block height 922,363:](https://docs.cronos-pos.org/for-node-hosts/getting-started/mainnet/upgrade-guide/upgrade_guide.md)
- [Running "Canis Major" network upgrade with cosmovisor](https://docs.cronos-pos.org/for-node-hosts/getting-started/mainnet/upgrade-guide/cosmovisor.md)