https://wccftech.com/oneplus-5-android-8-0-oreo-beta-build-leaked-get-it-now/

Every OEM has a number of ways to test the latest version of their ROMs before making them official. After examining these builds extensively, it is shifted to a closed beta and then open beta program. OnePlus is currently testing Android 8.0 Oreo update for its OnePlus 3 and OnePlus 3T phone now and the stable version will be out soon. Today, we got to know about the leaked build of Android 8.0 Oreo from the closed beta.

Many OnePlus 5 users were not happy that the company decided to announce Oreo open beta for the OnePlus 3 and OnePlus 3T phones before OnePlus 5. Generally, OEMs give preference to their latest phones when it comes to software updates but OnePlus followed a different streak. But now OnePlus 5 ( Amazon, $759.99) users can join the Oreo party, all hail the leaked build.