Microsoft is internally testing several new features for Windows 10 and these changes could be shipped with the 19H1 update next year. As highlighted by Microsoft watcher on Twitter, the company is working on Microsoft Flow-powered actions for Action Center, independent dark theme toggle for File Explorer and more.

File Explorer

Preview builds of Windows 10 19H1 (Spring 2019 Update) have already seen some testing of a new feature where the File Explorer will show the modified dates in a conversational format, a date format which is commonly seen on instant messaging apps.

Windows 10 October 2018 Update added dark theme support to the File Explorer, but the dark theme in File Explorer can be only enabled if Windows 10 is configured to use the system-wide dark theme setting as well.

According to a new report from Microsoft watcher Albacore, the software giant is considering a new feature which will allow users to change the theme of File Explorer independently in Windows 10 19H1. It means that you can run File Explorer in dark theme even if the operating system is configured to use the light theme.

Action Center

You will soon be able to create Quick Action buttons (in Notification Center) for your Microsoft Flow actions. — Albacore (@thebookisclosed) December 13, 2018

Windows 10's Action Center is also going to get some noticable changes with the 19H1 update. According to another report from the same source, Microsoft could add custom quick actions support to the Action Center and the custom actions will use the cloud-based Microsoft Flow service to execute the tasks.

Task Manager

Windows 10's built-in Task Manager is projected to receive another useful feature. The company is testing a new Task Manager feature where the users will be allowed to choose any of tabs (performance, app history, startup, users, details and service) to be the default one.

In Windows 10 October 2018 Update or older, the default tab of the Task Manager is the processes tab and there is no way to change it. Microsoft has heard the feedback and the users will be finally allowed to choose other tabs to be the default one.

Cortana related changes

Cortana is currently one of the key features in Windows 10 and the company is always testing new features for its digital assistant. As expected, Microsoft is working on Cortana-related changes in Windows 10 and it could ship with early 2019 update.

According to initial reports, Microsoft may split up Cortana and Search. As a result, Cortana and Search will appear as two separate entities on the taskbar and the changes are already live in 19H1 builds but it shows up for a limited set of Windows Insiders.

In a peculiar twist of events, it looks like they currently let you replace Cortana with.. a newer Cortana. The Cortana we use right now is labeled as "legacy" in a few places. New Cortana may end up being a proper Store app, less ties into the OS in general I suppose. https://t.co/cQ7BM67xkv — Albacore (@thebookisclosed) December 13, 2018

Microsoft is also testing some new changes potentially related to voice assistants, whereby you’ll be able to replace Cortana with other digital assistants such as Alexa on a system level.

New Save Dialog

According to Gustave, Microsoft is also testing a new save dialog in Windows 10 and it currently shows up for the Office apps.

Microsoft is working on similar improvements and more details in the regards will be shared in the coming weeks. Windows 10 19H1 is projected to be finalized in the spring of 2019 and the public rollout kicks off in April.