> For the complete documentation index, see [llms.txt](https://docs.b2ihealthcare.com/snow-owl-authoring-platform/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.b2ihealthcare.com/snow-owl-authoring-platform/collaborative-authoring/task-editor/task-changes-page.md).
# Task Changes Page
The **Task Changes Page** displays changes that were made while the task was active. This page is organized into three sections.
| Section | Description |
| ---------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **Change summary** | The *Change summary* section displays an overview of the number of new, modified, and deleted components. |
| **Changed components** | The *Changed components* section displays a list of changed concepts. Decorators and font color indicate the nature of the change: added, modified, removed. Selecting a concept displays additional detailed information about the change in the right-hand section. Double-clicking on a concept opens the given concept's editor. |
| **Change details** | If you are interested in a particular concept, click on the concept in the *Changed components* section. This will display additional information about the change in the *Change details* section on the right side. |
### Change summary section
The *Change summary* section displays an overview of the number of new, modified, and deleted components between versions. Inactivated components are subsumed as modifications.
### Changed components section
The *Changed components* section displays a list of changed concepts. Decorators and font color indicate the nature of the change:
*  added
*  modified
*  deleted
Selecting a concept displays additional detailed information about the change in the right-hand section.
{% hint style="warning" %}
The Changed components section is limited to reveal a maximum of 50 000 changes. After performing numerous changes on a Task the section might not contain all the changes.
{% endhint %}
Right-clicking on a changed component in the **Task Changes Page** allows the user to open the component in its dedicated editor to better review the changes and additional details associated with the component. Double-clicking also opens the relevant concept editor.
{% hint style="info" %}
Columns can be sorted by clicking on the header, where a small arrow will indicate whether it's in ascending or descending order.
{% endhint %}
**Changed component search**
It is now possible to filter task changes by changed components within the **Task Editor**.
### Change details section
If you are interested in a particular concept, click on the concept in the *Changed components* section. This will display additional information about the change in the *Change details* section on the right side, which now contains the following columns:
* **Change**: Type of change (Added/ Changed/Deleted)
* **Component**: Component name
* **Component type**: The type of the changed component (e.g. relationship, concept, Reference Set member)
* **Property**: The property that was changed (e.g. active, effective time)
* **From**: Previous state of the property (e.g. active - true)
* **To**: New state of the property (e.g. active - false)
{% hint style="info" %}
The columns can be sorted by clicking on the header.
{% endhint %}
### Change detail export
To export change details to DSV format, click on the **`Export task changes`** button at the top-right corner on **Task Changes Page** of the **Task Editor**.
This will invoke the **Change Export Wizard**, where users can choose the delimiter and specify the file path for the export file.
---
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