> For the complete documentation index, see [llms.txt](https://docs.umbraco.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.umbraco.com/umbraco-ui-builder/13.latest/upgrading/version-specific.md).

# Version Specific Upgrade Notes

This page covers specific upgrade documentation for when migrating to major 13 of Umbraco UI Builder.

{% hint style="info" %}
If you are upgrading to a new minor or patch version, you can find information about the breaking changes in the [Release Notes](/umbraco-ui-builder/13.latest/release-notes.md) article.
{% endhint %}

## Version Specific Upgrade Notes History

Version 13 contains a number of breaking changes from the previous, Konstrukt product.

See the [Migrate from Konstrukt to Umbraco UI Builder guide](/umbraco-ui-builder/13.latest/upgrading/migrating-from-konstrukt-to-umbraco-ui-builder.md) for full details.

## Legacy version specific upgrade notes

You can find the version specific upgrade notes for versions out of support in the [Legacy documentation on GitHub](https://github.com/umbraco/UmbracoDocs/tree/umbraco-eol-versions).


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