https://wccftech.com/pubg-xbox-one-1-0-coming-september-4/

PUBG Xbox One (which just received another major patch today) is coming out of the Game Preview early access program very soon. This was announced during Microsoft’s special Inside Xbox Gamescom 2018 live stream, where a trailer confirmed that version 1.0 of PUBG Xbox One will land on September 4th with the Sanhok map, custom matches (including War Mode), improved performance, major bug fixes. Moreover, Xbox Live Achievements will carry over from the Game Preview, in case you were wondering about this.

More information shared directly by Koo Sung Jeong (PUBG Console Lead PM) via Xbox Wire can be found below.