Microsoft announced Copilot for Legal, a version of its Microsoft 365 Copilot assistant for lawyers and in-house legal teams, offering more than 20 law-specific skills delivered as plugins. In Word desktop, it reviews contracts against a company's playbook and proposes edits in tracked-changes mode that users must approve, while the cross-app Cowork workspace handles multi-document work such as obligation tracking, agreement comparison and case timelines. Microsoft said the capabilities, offered in a Frontier stage since April, have been used by more than 1,800 people to generate nearly 100,000 edit suggestions, about 70% of which were adopted — figures from Microsoft's own usage and internal evaluation, not independent testing. Partners including Bloomberg Law, Thomson Reuters HighQ, DocuSign, Harvey, Relativity, iManage and NetDocuments supply plugins, and Microsoft says AI output still needs professional verification.