# Gavin Andresen
# 2013-02-19 21:01:05
# https://bitcointalk.org/index.php?topic=144984.msg1540657#msg1540657

A couple of minor clarifications: @p{par}

There has always been an artificial block size limit; Satoshi's code exponentially increased required transaction fees required to get into a block as the block filled up from 250K to an absolute-maximum 500K. There are almost certainly still miners running with that algorithm; their effective maximum block size is a little more than 250K. @p{par}

Also, solo/p2p miners and pool operators running a recent version of bitcoind can very easily change the maximum block size; it is a command-line / bitcoin.conf setting. They don't need to use different software.