If you’re running the Android M Developer Preview 3 software on your Nexus 5, Nexus 6, Nexus 9, and Nexus Player, you’re probably going to want to update your phone again.

Google has released a new version of the Android M Developer Preview 3 update. The old build, which was released earlier this week, was build MPA44G. The new build is MPA44I. You can find the new system images right here if you want to manually flash the update. Otherwise you can wait around for an OTA update to roll to your device.

So what’s different in these new builds? That much isn’t yet known, but if you’re using the Android M Developer Preview 3, it’s probably a good idea to update to the newest version. Not only do you want to avoid whatever it was that caused Google to release this new build, but if you’re using the Android M preview, you probably just want to be on the latest version of Android anyway.