Realme has started seeding its monthly update for the Realme 3 and 3i smartphones. The patch is 147MB big and carries the build number RMX1821EX_11.A.26. It brings the March 2020 security patch and squashes a couple of bugs for both phones. More importantly, it adds support for VoWiFi in India to users using Airtel and Jio services. Both phones are expected to receive Realme's new UI based on Android 10 sometime next month. Source
Source: https://www.gsmarena.com/realme_3_and_3i_get_vowifi_support_with_the_latest_update-news-42181.php