First of all, it is desirable for the pools to update the nodes to version 0.8a. Old versions Reject transactions containing content signatures (needed for markets and channels and subsequently for posting nicknames and other information associated with the owner of the address). Sorry, but it doesn't work without a fork. Exchanges also want to update due to the power of their nodes in the distribution of transactions over the network. When the social networks are cut off, the nodes of services and exchanges will be needed ... therefore, it is better not to delay the update. last tag on github v0.8a. I have already updated my services.