Microsoft Microsoft 365 Apps Updates

Windows

Here you will find all software, firmware, and hardware updates from Microsoft Microsoft 365 Apps.

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New Release every
3 days
Critical fixes
7
Security-related releases
70%

Risk factor
A total of 21 updates have been released for Microsoft 365 Apps.

Smooth installs %
Minor issues %
Major issues %

Variants

Microsoft 365 Apps Current Channel
Platform: Windows
View 25 Updates
Microsoft 365 Apps Monthly Enterprise Channel
Platform: Windows
View 18 Updates
Microsoft 365 Apps Semi-Annual Enterprise Channel
Platform: Windows
View 10 Updates

Updates

Last updated: Jul 23, 2026

Microsoft 365 Apps Current Channel Version 2607 (Build 20228.20110) resolves Access, Outlook, and PowerPoint issues. Fixes include Copilot loading and draft rendering problems, DLP policy tips for sensitive attachments, and text, form, and equation conversion bugs.

Security update Microsoft Microsoft 365 Apps Current Channel
Jul 23, 2026
Version 2607 (Build 20228.20110)
Security update Microsoft Microsoft 365 Apps Current Channel
Jul 23, 2026
Version 2607 (Build 20228.20110)

Security updates for Microsoft Office are listed for Version 2606. For Semi-Annual Enterprise Channel on Windows, the target build is 20131.20150.

Security update Microsoft Microsoft 365 Apps Semi-Annual Enterprise Channel
Jul 14, 2026
Version 2606 (Build 20131.20150)
Security update Microsoft Microsoft 365 Apps Semi-Annual Enterprise Channel
Jul 14, 2026
Version 2606 (Build 20131.20150)

Release notes for Microsoft Office security updates include fixes for Microsoft 365 Apps for enterprise on the Semi-Annual Enterprise Channel, Version 2508 (Build 19127.20730). The article also lists the same security update date across other Office channels and products.

Security update Microsoft Microsoft 365 Apps Semi-Annual Enterprise Channel
Jul 14, 2026
Version 2508 (Build 19127.20730)
Security update Microsoft Microsoft 365 Apps Semi-Annual Enterprise Channel
Jul 14, 2026
Version 2508 (Build 19127.20730)

Version 2606 (Build 20131.20154) fixes Outlook crashes when using the calendar and restores data loss prevention (DLP) policy tips for sensitive attachments.

Security update Microsoft Microsoft 365 Apps Current Channel
Jul 14, 2026
Version 2606 (Build 20131.20154)
Security update Microsoft Microsoft 365 Apps Current Channel
Jul 14, 2026
Version 2606 (Build 20131.20154)

Microsoft Office security updates for Microsoft 365 Apps Monthly Enterprise Channel Version 2604 (Build 19929.20264). The article also notes various fixes to functionality and performance.

Security update Microsoft Microsoft 365 Apps Monthly Enterprise Channel
Jul 14, 2026
Version 2604 (Build 19929.20264)
Security update Microsoft Microsoft 365 Apps Monthly Enterprise Channel
Jul 14, 2026
Version 2604 (Build 19929.20264)

Version 2605 (Build 20026.20236) includes security updates and various fixes to functionality and performance for Microsoft 365 Apps on the Monthly Enterprise Channel.

Security update Microsoft Microsoft 365 Apps Monthly Enterprise Channel
Jul 14, 2026
Version 2605 (Build 20026.20236)
Security update Microsoft Microsoft 365 Apps Monthly Enterprise Channel
Jul 14, 2026
Version 2605 (Build 20026.20236)

Microsoft Office security update notes for Microsoft 365 Apps Monthly Enterprise Channel Version 2606 (Build 20131.20152). The article also mentions various fixes to functionality and performance.

Security update Microsoft Microsoft 365 Apps Monthly Enterprise Channel
Jul 14, 2026
Version 2606 (Build 20131.20152)
Security update Microsoft Microsoft 365 Apps Monthly Enterprise Channel
Jul 14, 2026
Version 2606 (Build 20131.20152)

Version 2606 (Build 20131.20126) resolves Outlook crashes when using Copilot Compose chat and fixes Help me write button visibility in high contrast mode.

Microsoft Microsoft 365 Apps Current Channel
Jul 7, 2026
Version 2606 (Build 20131.20126)
Microsoft Microsoft 365 Apps Current Channel
Jul 7, 2026
Version 2606 (Build 20131.20126)

Version 2606 (Build 20131.20112) includes various fixes to functionality and performance.

Microsoft Microsoft 365 Apps Current Channel
Jun 30, 2026
Version 2606 (Build 20131.20112)
Microsoft Microsoft 365 Apps Current Channel
Jun 30, 2026
Version 2606 (Build 20131.20112)

Version 2606 (Build 20131.20090) fixes an Access performance issue that could cause slow or flickering form display, sluggish record navigation, and general slowness when working with forms.

Microsoft Microsoft 365 Apps Current Channel
Jun 25, 2026
Version 2606 (Build 20131.20090)
Microsoft Microsoft 365 Apps Current Channel
Jun 25, 2026
Version 2606 (Build 20131.20090)

Version 2606 (Build 20131.20090) fixes a performance issue in Access that could cause slow or flickering form display, sluggish record navigation, and general slowness when working with forms.

Microsoft Microsoft 365 Apps Current Channel
Jun 25, 2026
Version 2606 (Build 20131.20090)
Microsoft Microsoft 365 Apps Current Channel
Jun 25, 2026
Version 2606 (Build 20131.20090)

Version 2605 (Build 20026.20182) includes various functionality and performance fixes.

Microsoft Microsoft 365 Apps Current Channel
Jun 16, 2026
Version 2605 (Build 20026.20182)
Microsoft Microsoft 365 Apps Current Channel
Jun 16, 2026
Version 2605 (Build 20026.20182)

Version 2508 (Build 19127.20678) includes security updates and fixes an Outlook issue where images did not display when using "Top and bottom" text wrapping in Classic Outlook.

Security update Microsoft Microsoft 365 Apps Semi-Annual Enterprise Channel
Jun 9, 2026
Version 2508 (Build 19127.20678)
Security update Microsoft Microsoft 365 Apps Semi-Annual Enterprise Channel
Jun 9, 2026
Version 2508 (Build 19127.20678)

Version 2605 (Build 20026.20168) includes various fixes to functionality and performance.

Microsoft Microsoft 365 Apps Current Channel
Jun 9, 2026
Version 2605 (Build 20026.20168)
Microsoft Microsoft 365 Apps Current Channel
Jun 9, 2026
Version 2605 (Build 20026.20168)

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.

Security update Microsoft Microsoft 365 Apps Monthly Enterprise Channel
Jun 9, 2026
Version 2605 (Build 20026.20166)
Security update Microsoft Microsoft 365 Apps Monthly Enterprise Channel
Jun 9, 2026
Version 2605 (Build 20026.20166)

Version 2605 (Build 20026.20140) resolves an issue where images did not display when using Top and bottom text wrapping in classic Outlook.

Microsoft Microsoft 365 Apps Current Channel
Jun 3, 2026
Version 2605 (Build 20026.20140)
Microsoft Microsoft 365 Apps Current Channel
Jun 3, 2026
Version 2605 (Build 20026.20140)

Version 2605 (Build 20026.20112) includes various fixes to functionality and performance.

Microsoft Microsoft 365 Apps Current Channel
May 26, 2026
Version 2605 (Build 20026.20112)
Microsoft Microsoft 365 Apps Current Channel
May 26, 2026
Version 2605 (Build 20026.20112)

Version 2605 (Build 20026.20076) resolves Outlook and Office stability issues. It fixes mail sending with multiple Exchange accounts, unexpected Outlook exits when loading Viva Engage or Viva Insights emails, and rare Excel or PowerPoint crashes during coauthoring.

Microsoft Microsoft 365 Apps Current Channel
May 20, 2026
Version 2605 (Build 20026.20076)
Microsoft Microsoft 365 Apps Current Channel
May 20, 2026
Version 2605 (Build 20026.20076)

Version 2605 (Build 20026.20076) resolves Outlook mail sending and unexpected exit issues, plus rare Excel and PowerPoint crashes during coauthoring.

Microsoft Microsoft 365 Apps Current Channel
May 20, 2026
Version 2605 (Build 20026.20076)
Microsoft Microsoft 365 Apps Current Channel
May 20, 2026
Version 2605 (Build 20026.20076)

Version 2603 (Build 19822.20254) includes various fixes to functionality and performance.

Microsoft Microsoft 365 Apps Monthly Enterprise Channel
May 19, 2026
Version 2603 (Build 19822.20254)
Microsoft Microsoft 365 Apps Monthly Enterprise Channel
May 19, 2026
Version 2603 (Build 19822.20254)