> For the complete documentation index, see [llms.txt](https://docs.blockxnet.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.blockxnet.com/protocol-developers/modules/upgrade/resources.md).

# Resources

A list of (external) resources to learn more about the `x/upgrade` module.

* [Cosmos Dev Series: Cosmos Blockchain Upgrade](https://medium.com/web3-surfers/cosmos-dev-series-cosmos-sdk-based-blockchain-upgrade-b5e99181554c) - The blog post that explains how software upgrades work in detail.