[QScintilla] Qscintilla 2.6.1 / 2.8.1 differences?

[Matic Kukovec]

Hi guys,

I'm using PyQt 4.9.4 (Windows) which has QScintilla version 2.6.1 and 
have noticed that there is significant
lag on scrolling in documents with a large number of long lines, more 
than 400 characters.
In QScintilla 2.8.1 (PyQt 4.11 on Windows) the lag is completely gone.
Can anyone tell me what was upgraded and where in the source code that 
fixed this scroll lag?

Cheers,
Matic