UPDATE 7/26:
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Source:
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Microsoft 365 Insider Current Channel v2307 build 16626.20132 - July 26
Version 2307 (Build 16626.20132) Various bug and performance fixes. Source: Release Notes Current Channel (Preview) - Office release notes Update History for Office Current Channel (Preview) - Office release notes Newest Windows Current Channel (Preview)...

Version 2307 (Build 16626.20118)
Feature updates
Excel
- Performance improvement related to fonts.: If you do not use printer fonts or have not heard of printer fonts, unchecking the setting in File/Options/Advanced/[Include fonts that are stored on the printer] can help speed up font related operations such as choosing a font from font drop down, or formatting a cell by bolding/italicizing a cell's font, etc.
- Updated encryption for Microsoft Purview Information Protection: Advanced Encryption Standard (AES) with 256-bit key length in Cipher Block Chaining mode (AES256-CBC) is now the default Microsoft Purview Information Protection encryption mechanism for Microsoft 365 Apps documents and emails. Learn more.
Outlook
- Updated encryption for Microsoft Purview Information Protection: Advanced Encryption Standard (AES) with 256-bit key length in Cipher Block Chaining mode (AES256-CBC) is now the default Microsoft Purview Information Protection encryption mechanism for Microsoft 365 Apps documents and emails. Learn more.
PowerPoint
- Present a local file in PowerPoint Live: The "Present in Teams" button now supports presenting local files in PowerPoint Live in Microsoft Teams.
- Updated encryption for Microsoft Purview Information Protection: Advanced Encryption Standard (AES) with 256-bit key length in Cipher Block Chaining mode (AES256-CBC) is now the default Microsoft Purview Information Protection encryption mechanism for Microsoft 365 Apps documents and emails. Learn more.
Word
- Updated encryption for Microsoft Purview Information Protection: Advanced Encryption Standard (AES) with 256-bit key length in Cipher Block Chaining mode (AES256-CBC) is now the default Microsoft Purview Information Protection encryption mechanism for Microsoft 365 Apps documents and emails. Learn more.
Resolved issues
Outlook
- We fixed an issue where opening links in Edge would cause the side pane to not be visible.
- We fixed an issue where Outlook would prompt the user to save changes to a meeting when no changes were made.
Project
- We fixed an issue in Project where content was missing after scrolling.
Word
- We fixed an issue where document rendering caused overlapping artifacts from one part of the document to appear on top of other.
Source:
- Release Notes Current Channel (Preview) - Office release notes
- Update History for Office Current Channel (Preview) - Office release notes
- Newest Windows Current Channel (Preview)

Latest Office and Microsoft 365 Updates for Windows
https://www.tenforums.com/windows-10-news/217660-office-microsoft-365-support-windows-10-ends-october-14-2025-a.html Latest Office and Microsoft 365 Insider Updates Get the latest Insider build | Office Insider Release Notes for Beta Channel - Office release notes Release Notes Current...

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