Upgrade from ATENA 4.1.0 and later to 4.3.1g for users with a valid maintenance agreement. Please download and run the install file bellow, size 829 635 736B (Build 12/06/04 rev.7242, GUI 3D 4.3.1.0 24.04.2012, 2D 4.3.1.0 11.05.2012, ATENA-GiD scripts rev. 7306).
If you have problems with the upgrade installation, please contact us for help/an installation CD.
You can find a detailed changelist in the Readme.txt file.