Microsoft Publisher will no longer be supported after October 2026 (support.microsoft.com)

Microsoft says support for Microsoft Publisher will end in October 2026. After that point, Publisher won’t be included in Microsoft 365 and Microsoft 365 subscribers will no longer be able to open or edit Publisher files; support for the perpetual version ends Oct. 1, 2026. Microsoft recommends converting existing documents to formats like PDF or Word and using other Microsoft 365 apps (such as Word and PowerPoint) for common design tasks.