After Samsung began its rollout of Android 6.0 Marshmallow for the Galaxy S6 and S6 edge last month, the update has since made its way to the devices in various parts of the world, including on Sprint in the US.
As SamMobile reports, it looks like owners of the two high-end handsets on T-Mobile US may not have to wait too much longer for the update. The carrier's website reveals that Android 6.0 is now in its "testing" phase for both handsets, promising that it will "go through T-Mobile certification process testing to make sure you get the best quality software possible."
There's no firm release date for the update yet, but the report notes that it's likely to be a couple of weeks before testing is complete.
Elsewhere, Samsung has begun rolling out Marshmallow for the older Galaxy S5.