GanttProject runs on Windows, Linux and MacOSX? operating systems with Java Runtime Environment version 1.4.0 or higher. Processor and memory requirements depend on the size of your projects, but average modern computers (~1500GHz CPU, 256M RAM) are fine. GP takes about 15M on the hard drive.
QUALITY
We did our best to make quality GP 2.0 as high as possible. However, we have no quality control department and the real testing of the new GanttProject will start only after the release.
We did some profiling and improved performance of some operations (namely, project loading and scrolling Gantt chart). However, other operations may be slow even when working with relatively small projects. Particularily, we are aware that PERT chart has critical performance problems
It is possible that GanttProject doesn't start if it is installed in directory with name containing umlauts (and probably other non-ascii symbols) Bug report 1407292
We are aware of bad performance of PERT and resource charts and plan to optimize them in the future versions.
DISTRIBUTIONS
The absolute prerequisite is a correctly installed Java 1.4.x or 1.5.x.
ZIP distribution includes launchers for Windows (.bat file), Linux (.sh file) and MacOSX (.app file) and is considered as the main distribution.
We provide an installer for those 80% of our users who run GP on Windows, we have tested it on few Windows systems but we do not guarantee that installer will work correctly on your Windows machine even if java is already installed. In case of any troubles, please try ZIP distribution before reporting problems.
We provide a disk image (.dmg) for MacOSX. It was tested on a couple of Macs but still in case of any troubles, please try ZIP distribution before reporting problems.
Linux users are considered to be experienced enough to be happy with ZIP distribution
COMPATIBILITY
We claim that GP 2.0 is compatible with GP 1.x, which means that GP 2.0 should read project files created in GP 1.x and should recognize all supported options, with few exceptions listed below.
We don't think that GP 1.x is compatible with GP 2.0.
The release may be incompatible with options/project files written by the earlier previews
Still supported but requring some handcrafting
We do support custom stylesheets for HTML and PDF export but you need to edit some files to make them visible for GP. Please refer to custom stylesheets documentation?.
