While the Priv Marshmallow update has already started rolling out in the US and Canada, T-Mobile is yet to launch the update for units on its network. As the wait is on for the final update, a beta Marshmallow build has meanwhile started hitting those T-Mobile Privs that signed up for the testing program. Specifically, the beta update is currently hitting T-Mobile Priv variants with model number STV100-1. In addition units in the US, the build is also rolling out to STV100-3 units in Canada (carrier variants) and Asia pacific region. As for the size, it's a hefty update, weighing in...
Source: http://www.gsmarena.com/marshmallow_beta_starts_hitting_tmobile_priv_units-news-18095.php
