Version 1909: (Build 12026.20320) October 08 Release Notes:
-Addressed an issue that caused users to see occasional crashes in Outlook.
-Addressed an issue that caused users to be unable to open some instances of recurring calendar items.
-Addresses an issue that caused users with mailboxes on Exchange 2010 servers to experience issues when adding attachments to calendar items.
-Addressed an issue that caused users to experience issues when replying to digitally signed messages.
-Addressed an issue that caused users to experience a crash during profile creation.
-Fixed an issue that could cause data loss in sessions that involved both coauthoring and offline editing in PowerPoint.
-Fixed an issue for a crash that users could hit on opening a file.
-Fixed an issue where accessibility information was not being displayed in the Info Place slab of the backstage.
-Improved reliability when downloading Office updates by resuming downloads which may have been previously interrupted.
-To protect Office customers’ security, Microsoft Office updates are now signed using the SHA-2 algorithm exclusively.