It's not yet released, but I've been working extensively with a new addition to the Wall Worm team Orvid King to bring new tools into WW. There is a beta release of this new version. Since it's still not extensively tested, it's not yet the main download on WW site. You can see a list of updated features and a link to download on this post on the WW forums.
Among the features people have wanted for a long time there are proper skin weights on the SMD importer (as it turned out, the last update that was supposed to fix that was not correct), a VTA importer, complete $jigglebone (and other bone controls), etc.
A large percent of our focus has been speeding up slow functions, reducing RAM usage where possible, etc. We are also working on WW Pro, which will add native read/write of VTF files in Max and much faster importers/exporters that utilize the SDK rather than just MAXScript.
Here is a screenshot of ctm_fbi.qc from CS:GO imported from the updated QC/SMD importer tools:
[Blocked Image: http://dev.wallworm.com/media/1/image/png/page/121_qc_importer.png]
Notice the hitboxes and attachments. You can now bring them into Max, tweak them, and re-export.
Again, this is the beta and not the widely downloaded link. If you want to check out the new features, use the link above to get this beta. Please provide feedback if you find any bugs.