Weighing in at 833MB under the software build 2.7.531.6, the T-Mobile branded HTC One M9 is getting Android 5.1 today. Other than Android 5.1, the update also comes with anti-theft support, improvements to battery life, and Google Wallet support.
According to T-Mobile, the update should hit your handset sometime between July 27, today, and August 20. If you don’t want to wait, head on over to Settings > About > Software updates > Check now to see if you can snag the update now.
Be sure to share you update experience in the comments below.