I know a fair amount about Qt, and I have absolutely no idea why this is posted here :) most of the changes are just small tweaks and issue fixes.

Qt 5.1.1 includes QtCreator 2.8.0 instead of QtCreator 2.7.2. Other than that it's just a bugfix release.

It's only a point release - from 5.1 to 5.1.1 - this is usually just minor tweaks and fixes.

No idea why this is posted to HN. The 5.0 to 5.1 release was much much meatier and I don't recall seeing that posted.

For me it is comforting and encouraging to see that Qt survives well enough to make timely point releases. (Not thrilling, but nice.)

for us it could be the bugfix for qdockwidget to keep its original position when undocked.