I have 10149 on my Lumia 925 (T-Mobile USA), you may have to do more updates if that one doesn't give you the latest update, can't remember if I had more than one update.
I signed up for the insider program under the "fast ring". The fast ring phones have been getting update 10149 for a while now.
Is it available for ANY phone on the fast ring? Because i'm getting this update, which clearly isn't the 10149 update.
View attachment 107539
Device: Lumia 525
OS: Windows Phone 8.1 update1
Why is 10.0.12648.133 clearly not build 10149?
A build number has "nothing" to do with a OS version.