> For the complete documentation index, see [llms.txt](https://docs.keyless.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.keyless.io/on-premise/upgrade-procedure.md).

# Upgrade procedure

- [Cluster and Runtime](https://docs.keyless.io/on-premise/upgrade-procedure/cluster-and-runtime.md)
- [Breaking changes](https://docs.keyless.io/on-premise/upgrade-procedure/cluster-and-runtime/breaking-changes.md)
- [Release 1.3.0](https://docs.keyless.io/on-premise/upgrade-procedure/cluster-and-runtime/breaking-changes/release-1.3.0.md)
- [Release 1.4.0](https://docs.keyless.io/on-premise/upgrade-procedure/cluster-and-runtime/breaking-changes/release-1.4.0.md)
- [Databases](https://docs.keyless.io/on-premise/upgrade-procedure/databases.md)