Amazon CodeCatalyst is no longer open to new customers. Existing customers can continue to use the service as normal. For more information, see [How to migrate from CodeCatalyst](migration.md).

# Editing and collaborating on issues in CodeCatalyst
<a name="issues-edit-collaborate-issue"></a>

**Contents**
+ [Editing an issue](issues-edit-issue.md)
+ [Working with attachments](issues-attachments.md)
  + [Viewing and managing attachments](issues-settings-attachments.md)
+ [Managing tasks on issues](issues-tasks.md)
+ [Link an issue to another issue](issues-link-issue.md)
+ [Marking an issue as blocked or unblocked](issues-mark-as-blocked.md)
+ [Adding, editing, or deleting comments](issues-comment.md)
  + [Using mentions in a comment](issues-mentions-comment.md)