What is New in Version 4.0

The previous official release of gnuplot was version 3.7, with subversions up to 3.7.3. Gnuplot version 4.0 contains many new features, which were gradually introduced into a series of development snapshots 3.8a through 3.8k. This section lists major additions and gives a partial list of changes and minor new features. Sample gnuplot scripts demonstrating many of these features are provided in the gnuplot distribution, and are referred to here by name.