Changes to update naming convention

In the past the build update name was made up of the year and month that it was developed e.g. build 1903 being developed in March 2019.  This was confusing enough as often it was released a month or so later, so you wouldn't see 1903 until April 2019. And then with build 2004 it confused people even more as it looked like the update was 16 years old!. So from now on they will be named using the year and the H1 for first update in a year and H2 for the second update, hence 20H2.

Start Menu new design

The design of the Start Menu has been streamlined to make it look tidier.  The All apps list now has a partially  transparent background. The tiles are now "theme aware" meaning that in dark mode you can choose the background accent colours. There are also lots of new icons.

Microsoft Edge

The new version of Microsoft Edge will be deployed automatically as part of this update to all computers that have not already received it, it is rumoured it may also set it as your default browser.  If you prefer to continue using Google Chrome as I recommend then you can set it as default by clicking Start > Settings > Apps > Default apps > and change Web browser to Google Chrome by clicking on the icon.

ALT + TAB support for Microsoft Edge tabs

If you are a multi-tasker and often use ALT + TAB to switch between open applications then all the separate Microsoft Edge tabs that you have open will also appear rather than just one entry for Microsoft Edge.

Improving the notification experience

You will easily know where the notification is coming from (e.g. which application triggered it) by clicking the app logo at the top of the notification, and you can quickly get rid of the notification by clicking the X in the top right corner.

Settings

Microsoft is continuing its progress of moving settings from the old Control Panel to the new Windows 10 Settings App, this time more settings from the System Control Panel have been moved.

Improved tablet experience

If you are using Windows 10 on a 2-in-1 or convertible device you will no longer see a notification asking if you want to switch into tablet mode; instead, Windows will automatically make that switch, with appropriate adjustments to make the interface more touch-friendly.  Also on non touch devices the icon for switching to tablet mode has been removed from the quick actions panel in the notification bar to avoid it being accidentally enabled on devices which don't support touch.