I didn't find any notes on a changelog, but this new version is 1mb larger than the previous one, so I'm guessing there are some significant improvements. If you happen to notice what's new, let us know in the comments below!
05-23-2013, 05:09 AM
It is time one again for a BlackBerry 10 leaked OS. Now we have 10.1.0.1916 For BlackBerry Z10 (STL100-2, 100-3). We have a nice version
Good move. Expanding BBM's reach is definitely positive. (22 Votes)
Bad move. BBM should be exclusive to BlackBerry. (6 Votes)
Not sure. It could turn out to be good or bad. (6 Votes)