# Deploy marker

> A record of when a new version went live, used to connect errors to the change that caused them.

URL: https://pagerless.dev/glossary/deploy-marker
Updated: 2026-10-22

## In Pagerless

Sent by the SDK when the release is known from your host's variables.

## Related terms

- [Rollback](https://pagerless.dev/glossary/rollback): Returning a service to its previous known-good version after a bad deploy.