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+ BIP: draft-jg-small-bump-incr + Title: Block size increase to 2MB + small steps + Author: Jeff Garzik+ +==Abstract== + +Simple, one-time increase in total amount of transaction data permitted in a block from 1MB to 2MB, then small step increases. + +==Motivation== + +# Continue current economic policy. +# Exercise hard fork network upgrade. + +==Specification== + +# MAX_BLOCK_SIZE increased to 2,000,000 bytes at trigger point. +# Increase maximum block sigops by similar factor, preserving SIZE/50 formula. +# Each 10-minute segment thereafter increases MAX_BLOCK_SIZE by 20 bytes. +# Trigger: (1) Block time 00:00:00 on flag day, AND (2) 95% of the last 1,000 blocks have signaled support. + +==Backward compatibility== + +Fully validating older clients are not compatible with this change. +The first block exceeding 1,000,000 bytes will partition older clients +off the new network. + +==Discussion== + +In the short term, an increase is needed to continue to current +economic policies with regards to fees and block space, matching +market expectations and preventing market disruption. + +In the long term, this limit should focus on reflecting the maximum +network engineering limit. + +==Implementation== + +https://github.com/jgarzik/bitcoin/tree/2015_2mb_blocksize_step ++ Status: Draft + Type: Standards Track + Created: 2015-06-23 +