The Beta app initially used a new implementation of the keyboard however, many of you reported that this new keyboard introduced several issues with typing into apps like the Hyper-v console and typing certain language characters. We’ve changed how the Beta app keyboard works to behave exactly like the Remote Desktop client store app. In addition to supporting copy/paste of text and images, the preview app now supports copy/paste of files so that you can transfer files into and out of the remote session using both Command X/C/V and CTRL X/C/V. You can enable multiple monitors for a desktop connection from the additional options.
The preview app now supports the ability to use multiple monitors in your remote session.
Microsoft yesterday released an update for Remote Desktop client preview app for Mac with many new features like Multiple monitor support, Copy and Paste files support and more.