As a developer, you have access to the latest beta software for Essential Phone. So you can test your apps for upcoming releases to ensure they give customers the best experience when using your app on their device.
Changelog
April 11, 2018
Released Android Oreo 8.1 build on Essential Phone for Open Market and Sprint (OPM1.180104.141 OTA).
Released Android Oreo 8.1 build on Essential Phone for Telus (OPM1.180104.092 OTA).