> Edit: I mean to install the older version and make a project saved with the latest one openable with the older one.
sorry that I believe is not possible
if it is made in more recent release can't open in older
@DrGreenThumbCAN, It is possible though it might not work properly. Here is the post discussing it save project for older version
I tried, and it works fine <img src="smileys/smiley1.gif" border="0" align="middle">