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

Version: Version 2605 (Build 20026.20166)

Release date: Jun 9, 2026

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