Microsoft Microsoft 365 Apps Monthly Enterprise Channel Update Version Version 2605 (Build 20026.20166)
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Update Summary
Version 2605 (Build 20026.20166), Version 2604 (Build 19929.20220), and Version 2603 (Build 19822.20288) were released on 2026-06-09. Version 2605 includes functionality and performance fixes, while Versions 2604 and 2603 include security updates.
Update Details
Security
- Version 2604 includes security updates.
- Version 2603 includes security updates.
Bug Fixes
- Version 2605 includes various fixes to functionality and performance.
Product Information
Vendor: Microsoft
Product: Microsoft 365 Apps
Product type: Other
Platform: Windows
Variant: Monthly Enterprise Channel
Version: Version 2605 (Build 20026.20166)
Vendor information published: Jun 9, 2026
Original release notes: View on vendor site
Published on updatealert.io: Jun 11, 2026
Description: Office productivity applications for business communication and document work.