# Unsupported configuration version This can show as an error or as an warning: ``` only configurations files on version: 2 are supported, yours is version: 0, please update your configuration ``` It has to do with the v2 update. If you get it as a warning, your configuration file is valid in v2, but would benefit with the version header. You can remove the warning by adding this line to your configuration: ```yaml version: 2 ``` If you get it as a fatal error, it means your configuration is invalid. You can still add the `version` header mentioned above, and it'll tell you which parts of the configuration need to be fixed. You can check the [deprecations](../deprecations.md) page to see how to fix them. Also worth reading the [v2 announcement](../blog/posts/2024-06-04-goreleaser-v2.md), which contains an upgrade guide.