Sony has started the Android 10 rollout for its phones - out of the 8 phones on the list, it's the latest flagships that get it first. Users of the Sony Xperia 1 and Xperia 5 are reporting that they have received the notification for the update. The software has a build number 55.1.A.0.748 and it includes the November 1 security patch (previously the phones were running the October patch). Those aside, the jump to Android 10 brings with it Dark mode and the new gesture navigation, plus a better overview of which apps are tracking your location. Sony Xperia 1 running Android 10...
Source: https://www.gsmarena.com/sony_updates_xperia_1_and_xperia_5_to_android_10-news-40426.php
