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Version 1901: January 31
Version 1901 (Build 11231.20130)
Excel: Feature updates
- Collaborate with comments: Keep the conversation going right in your spreadsheet with the built-in reply box. Learn more
Outlook: Feature updates
- They'll see what you meme: When text or static images just won't do, use an animated GIF to make your point. Learn more
Visio: Feature updates
- Azure stencils built right in: Design a cloud app or plan an architecture using dozens of Azure stencils. Learn more
Office Suite: Feature updates
- Office 3rd Party Applications now have insert SVG support using the office.js api: 3rd party applications also known as add-ins in Office now have the ability to insert SVG's. Users can now connect their personal collection of SVG's to Office. Developers can use this feature by using the Office.js API.
Source: Release notes for Monthly Channel releases in 2019 | Microsoft Docs
See also: Announcing January feature update for Office for Windows desktop - Microsoft Community