You can now customize which liquids will transform blocks, including lava, or possibly even custom (Forge) liquid materials.
Previously, the plugin would use the movement of water itself to determine if a block needed to be transformed. Now, block updates are used. Despite the increased frequency of block checking (1000x/second), this way is much more reliable, and doesn't cause any performance issues. Blocks under (or next to) water in previously generated and new chunks are unaffected until a block update occurs. The transformations caused by this plugin do not trigger block updates, thus biomes like deep_ocean with gravel floors are safe.