# Activity and history

The **Activity** page offers you the ability to see the evolution of project and [applications](https://docs.sonarsource.com/sonarqube-server/10.4/user-guide/applications "mention") measures over time.

Go to **Projects** > *Your project or application* > **Activity** to view a comprehensive list of the analyses on a file for a project (subject to [housekeeping](https://docs.sonarsource.com/sonarqube-server/10.4/instance-administration/housekeeping "mention")).

Graphs on the **Activity** page help you understand the evolution of up to three measures of your choice against each other. Graph mouseovers show the measure values and events associated with particular analyses.

## Events <a href="#events" id="events"></a>

The following table groups the events you can find on the **Activity** page:

| **Event**                 | **Description**                                                                                                                                                                                                                                                                               |
| ------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Definition change         | The application’s definition has changed.                                                                                                                                                                                                                                                     |
| Issue detection           | An analyzer used in the project has been updated.                                                                                                                                                                                                                                             |
| Profile                   | The [quality-profiles](https://docs.sonarsource.com/sonarqube-server/10.4/instance-administration/quality-profiles "mention") used to analyze the project has changed. Either the profile was edited, or a different profile was used for analysis. It also shows details about rule updates. |
| Quality Gate              | <p>The status of the <a data-mention href="quality-gates">quality-gates</a> has changed.</p><p><br></p>                                                                                                                                                                                       |
| SonarQube version upgrade | The SonarQube version has been updated. Appears after the first analysis following the upgrade.                                                                                                                                                                                               |
| Version                   | The project’s version has changed.                                                                                                                                                                                                                                                            |
| Other                     | An event was manually created on a snapshot. See [managing-project-history](https://docs.sonarsource.com/sonarqube-server/10.4/project-administration/managing-project-history "mention") for more information.                                                                               |

Events are also shown on the project or application’s **Overview** page.

On the **Overview** page, each analysis snapshot shows a measure variation compared to the previous analysis regarding number of issues, coverage, and duplications.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.sonarsource.com/sonarqube-server/10.4/user-guide/activity-and-history.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.