MC1221453 | (Updated) Microsoft Purview | eDiscovery – Advanced review set explorer

Service

Microsoft Purview

Last Updated

2026-02-27T18:27:20.423Z

Published

2026-01-23T00:55:35Z

Message ID

MC1221453

Updated February 27, 2026: We have updated the timeline. Thank you for your patience. [Introduction] We’re introducing the Advanced Review Set Explorer (public preview) for review sets in Microsoft Purview eDiscovery (Premium). eDiscovery has long supported Keyword Query Language (KeyQL) because it provides a familiar, approachable, and powerful way to search and filter content—while working consistently across both search and review experiences. For many users and workflows, KeyQL remains the recommended and most efficient way to build queries. At the same time, we understand that power users and advanced reviewers often need greater flexibility to slice, aggregate, and analyze review set d...

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