Time line for sunsetting Legacy Custom Types Builder

Is there a estimated time line for deprecating Legacy Builder? When will it go out of support?

I am seeing the deprecation message in the Prismic Console, but there is a lack of documentation on how to migrate and the Upgrade tool is still in beta.

Please provide clear guidelines and timelines so that teams can plan accordingly.

Legacy Builder (Deprecated)

We’ve improved the developer experience by providing a new tool called Slice Machine. You can turn on the legacy builder for your repository below, but it will soon be deprecated and will not recieve future updates.

Hi Gru,

The legacy builder will not turned off, but like the message says, it will not receive future updates. This is in place as of now.

There's a guide for upgrading here: