upgrade from 4.82 to 4.92?

Hi is there a simple way from 2.82 to 4.92 to upgrade, without removing the whole component.
Also where can i found a changelog?
Regards, Christian

Here you go:
www.sakic.net/news/sef_advance_4.9_released/

Changelog is not publically available yet.

Changes from 4.8.2:

4.9.2
+ Fixed CP incompabilities with Mambo 4.5.2 (old DOMIT version, quickbuttons CSS and images)

4.9.1
+ Added refresh option to RSS reader to force fetch above cached copy

4.9.0
+ Added icons to administration menu
+ Changed admin control panel layout, added quick access buttons,
  moved intro text to help on main cp page
+ Added RSS reader to fetch news from Sakic.Net

4.8.3
+ Fixed the incompabilities with components called com_contentxyz