Bitcoin Nodes Summary

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Name Introduced On Support Bigger Blocks Blocksize Growth Algorithm Node Count
Bitcoin Core 01/03/2009
No Data
8171
Bitcoin Unlimited 09/04/2015
  • BUIP001 Fixed block limit made obsolete
  • BU follows the blockchain with most PoW as per the original Nakamoto Consensus
  • Separation of the mining block size (default 1MB) from the non-mining block acceptance size (default 16MB)
  • Block size limits and acceptance depth individually configurable
606
Bitcore 11/04/2015
No Data
235
Bitcoin Classic 02/10/2016
  • 2MB hard fork after: miner supermajority (75%+) AND 1 month grace period.
60
btcd 10/05/2013
No Data
17
Bitcoin XT 12/24/2014
  • 2MB hard fork after: miner supermajority (75%+) AND 1 month grace period.
12
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