The following draft BIP proposes changing the MAX_BLOCK_SIZE consensus rule to be a function of the median block size over the last 12,960 blocks (about three months) multiplied by 2 and calculated when a block is connected to the blockchain.
Motivation: The purpose of this consensus rule change is to allow the maximum block size to increase or decrease based on actual network usage. A block size limit, as discussed here, prevents certain types of denial of service attacks on the Bitcoin network, however a fixed limit does not allow the capacity of the network to increase as advancements in scaling are realized. By adjusting the limit based on the sizes of blocks in the recent past, the throughput of the network can adjust to changes in user demand and scaling related technology advancements while still being protected from denial of service attacks. Full proposal here: https://github.com/bitpay/bips/blob/master/bip-adaptiveblocksize.mediawiki I look forward to your consideration. thank you, -- Chris Kleeschulte
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