I know this is pretty late since it's less than three hours to go - but everyone who wants to be on the new attack resistant blockchain needs to upgrade their ethereum client of choice RIGHT NOW!
Read this blog post:
https://blog.ethereum.org/2016/10/18/faq-upcoming-ethereum-hard-fork/
Basically it means download and use the latest version of Geth, Mist, Mist wallet, Parity or whatever other client you use as a node or wallet.
Read this blog post:
https://blog.ethereum.org/2016/10/18/faq-upcoming-ethereum-hard-fork/
Basically it means download and use the latest version of Geth, Mist, Mist wallet, Parity or whatever other client you use as a node or wallet.