Professional edition
Improved high-resolution textures (per-pixel land types).
Increased max texture resolution to 32×.
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Increased max texture/light map size to 4M × 4M pixels (16 Tpxls).
Implemented limited-life 'evaluation' license keys.
All editions
Bump-mapped light-mapping.
Many fixes, as included in L3DT 2.3b beta-series.
De-tuned overzealous copy-protection in L3DT Pro to prevent crash-on-startup.
Fixed 'Invalid pixel error' when making odd-sized maps.
Fixed 'Invalid pixel error' when deleting water body.
Fixed 'most-recently-used' list in file menu.