Sumit says: 

The COMSTAR packages and sources have been updated on the website with the latest stuff. 

If you have an existing installation, please clean it up as specified in this page before loading new packages:  Check out release notes section for the changes in this update. Most significant change (apart from bug fixes) is that sbdadm create-lu now automatically does the register operation. Also delete-lu does the deregister. delete-lu actually does not delete your data or the LU metadata. So it is possible to bring a previously delete LU back into the system by using the new import-lu command.