Its actually Patch 6. Most of Patch six is already finished with the exception of lightmaps, vertex access and major bug fixes. Other stuff like Nodetree(oct-trees) with advanced portals, CSG add/subtract/intersect is already in and working. Lightmaps and vertex access are the only things left for Patch 6 to complete, so it should come out soon after Patch 5.
Patch 5 contains some compiler fixes and other big bug fixes that need to be fixed, plus Direct X 9 support and full support for Nvidia's CG shaders as well as .FX Direct X 9 shaders.
Lee made the decision to put out patch 5 instead of putting everything in patch 5 he decided to update the aging DBPro language demo on the website with a DirectX 9 demo with all the goodies of shading of Nvidia's CG and Direct X 9 shaders plus a demo and rather save the other big features a few weeks later for Patch 6.
Its basically semantics and a few more weeks of waiting is what it means. The commands you want are coming, just coming in Patch 6 instead of Patch 5 basically.
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