Version 4.0.0 provides full support for the World of Warcraft 5.0.4 patch. This new version is not compatible with any previous version of World of Warcraft.
The new version adds customized support for Archaeology rather than rolling it into the other Gatherable types. Archaeology nodes will no longer be displayed on the World Map and will only be displayed on the Minimap for a short period of time after you use the Survey ability. More improvements to the Archaeology features are also currently under development.
I am also still working on getting translations in for various languages. Most notably, ptBR. I hope to have at least partial support ready for the next version which will likely be small update to deal with various nagging issues.
Version 4.0.0 Change Log Version Issue List: http://jira.norganna.org/browse/GATH/fixforversion/10552 - GATH-167: WoW 5.0 Compatibility - GATH-168: MoP Ore/Herbs added. Treasure has not yet been considered, and nor have non-English translations been added yet. - GATH-169: Archaeology support is now completely custom from other Gathererables. Nodes are now only displayed on the Minimap, and only for a brief time after Survey is cast.