If you have not had the chance to upgrade just yet and don't plan Windows 11 in the short term, now you can upgrade. Microsoft announced last week that version 21H1 is already in widespread use. 

The 21H1 update is a big patch for the OS, with a number of fixes and changes. If you enable the windows update option then you should be able to see the update available. . Microsoft began rolling out Windows 10 21H1 to customers in May, however not everyone has received the update just yet.

Current status as of November 3, 2021
Windows 10, version 21H1 is designated for broad deployment. As always, we recommend that you update your devices to the latest version of Windows 10 as soon as possible to ensure that you can take advantage of the latest features and advanced protection from the latest security threats. For more details, see How to get the Windows 10 May 2021 Update.

You can read up on the changes list here.

Windows 10 21H1 update for available everyone