com add-ins

Microsoft 365 Apps Version 2606 is not a forced migration from 32-bit Office to 64-bit Office, so organizations do not need to block it merely because they use 32-bit COM or VSTO add-ins. They should deploy the July 14, 2026 update only to add-in-dependent devices that have passed representative...

Before switching to the new Outlook for Windows, users and IT teams should first test PST-heavy mailboxes, COM add-in dependencies, and public-folder workflows because Microsoft’s current migration caveats affect those classic Outlook assumptions more than the visible interface change. The...