Apparently, the 'Traditional' panel layout will be done away with....leaving only the Modern
Traditional is a small panel and a traditional window list
Modern is a large panel with grouped windows and a small system tray
If you use the 'Modern' panel layout, just continue on....there will be no change
If you prefer the Traditional layout, then this is what you do:
1) right-click panel -> open applets
2) type “window” (just for convenience)
3) take out the “grouped window list” by clicking minus
4) add the “window list” by clicking plus
5) right-click panel – panel edit mode
6) rearrange applets as needed and switch off panel edit mode again
Done!
You can also add the “window quick list” for the really typical look.
I prefer this applet for the highlight colour! It makes it much easier to see what window is currently active.
Or you can learn to tweak the Modern layout