Is Lollipop 5.1.1 available for the Sony Xperia Z2 in T-Mobile?

[AC Question]

Is lollipop 5.1.1 available for Sony Xperia Z2 in T- mobile?

I have an unlocked Sony Xperia Z2 which was in T- mobile. Now I am in different country and different operator. Currently I am using Lollipo 5.0.2 and I didn't get Lollipop 5.1.1 OTA update still now. Is it available?