The third Essential PH-1 Android Oreo 8.0 beta build arrives as version OPM1.170911.254 and weighs in at 1 GB if you download from Essential’s website. If you’re already running Essential's Android 8.0 beta 2, you will receive an OTA that weighs approximately 106 MB.
The new beta 3 build brings Google’s January security patch that includes fixes for the Spectre and Meltdown exploits, as well as miscellaneous stability and bug fixes. In Wednesday’s Reddit AMA, Essential said "it’s working to finalize logistics of the Oreo public release, and that its development and Q.A. teams are working hard to get the release to meet the company’s quality and performance standards."