Recently, T-Mobile started rolling out the Android 6.0 Marshmallow update for Samsung Galaxy S6. Now, carrier Sprint is also pushing the same firmware to its S6 users.

The software package for the Samsung Galaxy S6 under Sprint has the following build number: G920PVPU3CPB6. This update is about 1235.87 MB, according to Sam Mobile, which cited an S6 owner who received the update.

Along with custom UI changes for TouchWiz and a brand-new vibration pattern, this update also brings in the usual suspects like Doze, Google Now on Tap, Direct Share and changes to app permissions.

In case, Sprint Galaxy S6 owners have not received the notification yet, the availability of update can be manually checked by navigating to the device’s Settings menu -> About device -> Software update.

Other than the flagship S6, there is no confirmation available on the Android 6.0 Marshmallow update for the bigger sibling Samsung Galaxy S6 Edge, at this point. However, some users are believed to have got the update.

Among the U.S. carriers, T-Mobile was the first to update the Galaxy S6 and Galaxy S6 Edge with Marshmallow. Verizon, on the other hand, has started updating the Galaxy Note 5 with the latest OS. However, there is no official confirmation on other carriers with regard to the roll-out schedule.

Also, interestingly, Samsung is pushing a "second" Android 6.0.1 Marshmallow update for Galaxy Note 5 in South Korea. The build number of this new update is N920LKLU2BPB2, another Sam Mobile report noted.

At this point, we do not know what’s in the package. However, some Galaxy Note 5 users reportedly faced critical bugs after installing the original Android 6.0 OTA update. The bugs include battery drain and issues specific to Gear VR pairing.

Speaking of other Galaxy handsets, an official roadmap got leaked toward the beginning of this month and it said that the Samsung Galaxy Note 5, Galaxy S6 Edge+, Galaxy S6, Galaxy S6 Edge should receive the update in March 2016. Galaxy Note 4 and Galaxy Note Edge will receive the same firmware in April.

Old devices like the Samsung Galaxy S5 and Samsung Galaxy Tab S2 slates will see the update in May 2016. The Galaxy Alpha, on the other hand, will receive the firmware in June, whereas the new Galaxy A7 and Galaxy A5 can expect the Android 6.0 OTA update in summer.