Two days ago, Bitcoin’s Core developers made an ominous announcement. The Bitcoin Core client would no longer connect to nodes running SegWit2x. Though miners are the ones who actually write blocks to the blockchain, user-run nodes are also important for maintaining an up-to-date ledger across the entire network. With Core’s recent announcement, there will be a small but important change to how the network operates: Miners will still broadcast their blocks to the network, but nodes running the Bitcoin Core client will only relay blocks to other nodes running the same client.
Read more here: https://cointelegraph.com/news/bitcoin-core-developers-remain-adamant-in-opposition-to-segwit2x-potential-showdown-in-november