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- Oct 14, 2025
- Parsed from source:Oct 14, 2025
- Detected by Releasebot:Oct 14, 2025
Version 2509: October 14
Version 2509 (Build 19231.20194)
- Various fixes to functionality and performance.
Security updates listed here
Original source Report a problem - Oct 7, 2025
- Parsed from source:Oct 7, 2025
- Detected by Releasebot:Oct 8, 2025
Version 2509: October 07
Version 2509 (Build 19231.20172)
- Various fixes to functionality and performance.
- Oct 1, 2025
- Parsed from source:Oct 1, 2025
- Detected by Releasebot:Oct 2, 2025
Version 2509: October 01
Version 2509 (Build 19231.20156)
Resolved issues
Excel
- We fixed an issue where ribbon controls were not rendered when rejoining Office sessions in a virtual machine, Azure Virtual Desktop, or remote desktop environment.
Outlook
- Fixed an issue that caused Outlook to terminate unexpectedly when starting.
- Sep 23, 2025
- Parsed from source:Sep 23, 2025
- Detected by Releasebot:Sep 17, 2025
- Modified by Releasebot:Oct 14, 2025
Version 2508: September 23
Version 2508 (Build 19127.20264)
- Various fixes to functionality and performance.
- Sep 9, 2025
- Parsed from source:Sep 9, 2025
- Detected by Releasebot:Sep 3, 2025
- Modified by Releasebot:Sep 16, 2025
Version 2508: September 09
Version 2508 (Build 19127.20222)
Security updates
- Various fixes to functionality and performance.
- Sep 3, 2025
- Parsed from source:Sep 3, 2025
- Detected by Releasebot:Sep 4, 2025
- Modified by Releasebot:Oct 8, 2025
Version 2508: September 03
Version 2508 (Build 19127.20192)
Resolved issues
Outlook
- Fixed an issue where some Outlook add-ins were encountering an "Office.auth.getAccessToken is not a function" error.
- Fixed an issue where users received unexpected meeting cancellations following meeting exception updates.
- Sep 3, 2025
- Parsed from source:Sep 3, 2025
- Detected by Releasebot:Sep 17, 2025
Version 2508: September 03
- Aug 26, 2025
- Parsed from source:Aug 26, 2025
- Detected by Releasebot:Aug 27, 2025
- Modified by Releasebot:Oct 2, 2025
Version 2508: August 26
Version 2508 (Build 19127.20154)
Feature updates
- Office Suite
- New Trust Center settings to block file opens using insecure protocols: New settings in Trust Center will allow users to restrict or allow file opens using FTP/HTTP protocols and fallback to FrontPage Remote Procedure Call (FPRPC) protocol.
Resolved issues
Outlook
- Fixed an issue that caused Outlook to terminate unexpectedly when sending a meeting invite with an encryption label.
Office Suite
- We added support for pixelated rendering of embedded images in SVG assets.
- Aug 19, 2025
- Parsed from source:Aug 19, 2025
- Detected by Releasebot:Sep 17, 2025
Version 2507: August 19
Version 2507 (Build 19029.20208)
- Various fixes to functionality and performance.
- Aug 12, 2025
- Parsed from source:Aug 12, 2025
- Detected by Releasebot:Sep 3, 2025
Version 2507: August 12
Fixed issues where screen readers didn't announce errors and where assistant-related buttons incorrectly appeared in Outlook.
Outlook
- We fixed an issue that caused screen readers to fail to announce error messages when using Draft with Copilot.
Outlook
- We fixed an issue that caused Outlook to display the Prioritize and Settings buttons when they should not appear, such as when the user does not have a Copilot license or has disabled the Copilot UI.