New features
Allowed multiple climates. Up to 256 different climates may be used in one map, with up to 256 unique land types each. Climates are defined in the \Climates\*.cli files and listed in the \Climates\climates.ini file.
Added heightfield erosion routines, controlled by the design map.
Land types are now dependent on water-table and salinity, giving pretty grass & beach effects.
Calculation of water-table and salinity.
Added heightfield resampling + horizontal and vertical rescaling.
Added option to export texture list, used in run-time texture blending.
Added batch-generation engine, to generate multiple maps automatically.
User interface
Reorganised menu system, with consolidation of most functions into 'Operations' menu.
Added flood-on-click mouse tool for making sea and lakes manually, with partial buffer redraw of invalidated regions only.
Allowed overlay of salinity map and heightfield in water map display.
Added customisable design map schemes, saved in \Settings\schemes.ini file.
Added climate drop-down box and erosion slider to new design map dialog box.
Replaced edit boxes with combo-boxes & slider-bars in design map pencil and edit pixel attributes. Also added 'Apply to all' option.
Added small, medium and large buffer size options, plus toggle option for over-buffering.
File I/O
Changed format of map group file to be more human-readable.
Added 'native' support for Terragen and VTP heightfield files (.ter and .bt respectively) - these formats can now be used as default file formats in L3DT.
Mesh file export options for heightfield (only '.x' so far).
Added 'export selected area' option for saving smaller chunks of the heightfield.
Added support for jpeg load / save (finally!).
Added a file preferences dialog box to manage all the new file format options.
Optimisations, bug fixes
Faster automatic lake-flooding routines due to better progressive testing of area limit over-flooding.
Increased speed and decreased exe size using of compiler optimisations.
Added an error log window and an error log file (log.txt).
Mosaic maps