--- title: "Changing Content Models on a Live Prismic Site" url: https://daily.dev/posts/changing-content-models-on-a-live-prismic-site-95cb2q0pq source_url: https://prismic.io/blog/changing-content-models-on-a-live-site type: article source: "Prismic" published: 2026-07-15T18:27:27.588Z updated: 2026-07-15T18:27:48.766Z tags: ["cms"] reading_time: 11 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Changing Content Models on a Live Prismic Site **[Prismic](https://daily.dev/sources/Prismic)** · 11 min read · 0 upvotes · 0 comments ## Summary A practical guide to safely modifying Prismic content models on live sites without losing published content. Covers four common scenarios: renaming a field (change label, keep ID), changing a field's type (add new field, migrate content via Migration API, switch code, remove old field), splitting one field into two, and making a single field repeatable. Each technique follows the same pattern: add new fields alongside old ones, use the Prismic Migration API with a Node.js script to move content, update application code, then remove the old field. Also covers redesigning slice variations by adding a new variation and gradually migrating content writers to it. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Headless CMS Content Modeling: Expert Guide for Enterprise Scale Success](https://daily.dev/posts/headless-cms-content-modeling-expert-guide-for-enterprise-scale-success-fg4yrbq0f) · Netguru · 0 upvotes · 0 comments --- Tags: [#cms](https://daily.dev/tags/cms) [View this post on daily.dev](https://daily.dev/posts/changing-content-models-on-a-live-prismic-site-95cb2q0pq)