WorkItem Historian

About

WorkItem Historian helps Azure DevOps users review how a work item changed over time.
Select a work item ID on an Azure DevOps page, then launch the extension from the context menu to open a dedicated history view.

Key functionality:

Opens revision history for a selected Azure DevOps work item ID.
Retrieves work item metadata and update history from Azure DevOps APIs.
Shows field-level changes across revisions for important text fields such as Description, Acceptance Criteria, Repro Steps, Test Steps, and Tags.
Supports two comparison modes:
Inline diff view
Side-by-side diff view
Supports time filtering to show changes from the last X days.
Highlights inserted and deleted content to make edits easy to understand.
Works with both modern Azure DevOps organizations and legacy visualstudio.com-hosted organizations.
Who it is for:

Product owners, developers, testers, and analysts who need fast visibility into requirement and test-content changes in Azure DevOps work items.