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A deploy marker indicates a change in the deployed version of an application. This can be used to group together occurrences of errors and performance issues within a certain time frame. From when the version was deployed until a newer version was deployed. Deploy markers are also required to enable backtrace links for an app. We normally recommend using the revision config option to set the correct revision for a deploy.

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Cedar (Legacy Platform) applications

Make sure a working Heroku Logplex Log Drain is setup before continuing with this section.
Using Heroku with the Heroku Labs: Dyno Metadata enabled will automatically set the revision config option to the HEROKU_SLUG_COMMIT system environment variable. This will automatically report new deploys when the Heroku app gets deployed.
📖 Read our guide on how to set up deploy markers.
To enable Dyno metadata run:
Bash
heroku labs:enable runtime-dyno-metadata -a <app_name>
replacing <app_name> with your app name. And that’s it! Deploys will now automatically be tracked by AppSignal.

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Fir applications

Currently, deploy markers aren’t available for Heroku Fir generation applications.