It seems that there is a Ravencoin Classic (RVC) fork off the Ravencoin (RVN) blockchain that has happened along the last RVN hardfork when the new KAWPOW algorithm has been adopted by Ravencoin. The thing that differentiates RVC from RVN is the fact that the Ravencoin Classic retains the original X16R mining algorithm that has been introduced with the launch of RVN. The idea to fork from X16R to X16Rv2 and then to the KOWPOW algorithm for Ravencoin is to keep RVN GPU mining friendly and to drive away secret FPGA/ASIC miners as such apparently exist for X16R and X16v2 already. Yet the Ravencoin Classic (RVC) fork that retains the original X16R algorithm and is being described by F2pool (the largest pool to support RVC mining at the moment) with things such as “RVC can be efficiently mined with GPU cards” and “RVC cannot be efficiently mined with CPU or ASIC mining machines”. Surprisingly or not the mining profitability with GPUs of RVC with X16R is currently lower for the same hardware RVN with KAWPOW.
Now, regardless if you support the Ravencoin Classic (RVC) or not, as with other forks if you had Ravencoin (RVN) in a local wallet, then you will be able to claim your RVC coins at 1:1 ratio to do whatever you want with them. You just need to copy the wallet data file to a new installation of the RVC wallet, make sure you use the datadir command line parameter to use a custom folder for the Ravencoin Classic blockchain data as otherwise it will try to overwrite the RVN data you have available. The RVC wallet should have replay protection already, though it is always wise to first move your RVN coins to a new address before doing anything with RVC, just to be on the safe side! Ravencoin Classic (RVC) is currently being traded only on the Longbit crypt exchange which is an Asian one (switch to English language in the upper right corer of the screen), though it accepts international registrations. It however requires you to go through an identity verification process before you can deposit and trade coins, so have in mind that you need to pass that as well.