To solve the problem offered two ways: Bitcoin Unlimited — remove the limit of 1 MB. This was supported by many miners, as increasing the size of blocks not only eliminates the queue, but also increases the profitability of miners due to the growth of the total Commission in the block, even if the transaction fee falls. Against were mostly developers-they believe that the removal of the limit will lead to an increase in requirements for the power of technology, small miners will go out of business, which will lead to the centralization of the system; Segregated Witness (SegWit) — some of the information is not stored in the blockchain, and in a separate file outside of the block chain. The developers believe that as a result, a lot of space will be freed, more transactions will be placed in the block and the speed of confirmations will increase. Supporters of Bitcoin Unlimited believe that This is only a temporary and more complex solution.