A group of Bitcoin companies plans to deploy a hard fork to double Bitcoin’s block weight limit to eight megabytes this November. Known as “SegWit2x,” this incompatible protocol change follows from the New York Agreement (NYA) and is embedded in the BTC1 software client.

SegWit2x is highly controversial. Most of Bitcoin’s development community, a number of other companies, some mining pools and — if public polls and futures markets are representative — a majority of users and the market are not on board with this hard fork. Some of them are even engaged in a sort of protest movement, under the banner “NO2X.”

For those who have not kept up with the debate, here’s an overview of the main arguments for and against the 2x hard fork part of SegWit2x.

Read more: BitcoinMagazine