# Heroku ## Heroku Attributes This document defines attributes for the Heroku platform on which application/s are running. | Attribute | Type | Description | Examples | Stability | |---|---|---|---|---| | `heroku.app.id` | string | Unique identifier for the application | `2daa2797-e42b-4624-9322-ec3f968df4da` |  | | `heroku.release.commit` | string | Commit hash for the current release | `e6134959463efd8966b20e75b913cafe3f5ec` |  | | `heroku.release.creation_timestamp` | string | Time and date the release was created | `2022-10-23T18:00:42Z` |  |