UPDATE 2: The Galaxy S9 and S9+ users are getting the One UI 2.0 beta update in the UK.
UPDATE 1: The One UI 2.0 beta update is now available in India. It is rolling out to the Galaxy S9 and S9+ users in the country. The software version of this update is G960FXXU7ZSKD and G965FXXU7ZSKD for the Galaxy S9 and S9+ respectively. The size of this update is more than 1800MB.
Read More: One UI 2.0/Android 10 coming to Galaxy Note 9, Note 10, S9, and S10 in January 2020 or early
After downloading and installing the Samsung Members app from the Galaxy Store or Google Play Store, you can sign up from the announcement ‘Join the One UI Beta Program’ .
The One UI 2.0 beta update will soon be available for download, and users will be able to download it from the Settings > Software update menu.