Introducing Render Sandboxes: a computer for every agent.
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November 04, 2026
Adjusted
Upcoming service preview and preview environment support for GitHub stacked PRs
On November 18, 2026, Render will begin supporting separate service previews and preview environments for each pull request in a GitHub PR stack:
Currently, Render creates previews only for PRs that directly target your service's linked branch. This means that only the bottom PR in a stack can generate previews.
Beginning November 18, Render will apply your existing preview mode to all PRs in a stack:
- Automatic: Render will create previews for each PR in the stack, except for any that include
[skip preview]in their title. - Manual: Render will create previews only for PRs in the stack that include
[render preview]in their title.
Each preview creates new resources that are billed according to their compute plans and other specs. If you use automatic previews, this change might increase your preview-related costs.
- Learn more about previews in the documentation for service previews and preview environments.
- To enable previews for stacked PRs sooner, reach out to our support team in the Render Dashboard.