UTC 2 has been pushed back about 2 years.  The current UTC will convert V3 face maps to V4 but that's about it.  The V3 to V4 plugin is free.  DP Hoadly did a terrific job remapping V4 so it will take V3 textures.  It's a little pricey but if you have a lot of V3 textures, it may be worth the price.