2015-06-23 02:51:52 -04:00
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<pre>
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2015-06-23 18:18:39 -04:00
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BIP: 102
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2016-11-30 09:45:33 +00:00
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Layer: Consensus (hard fork)
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2015-06-23 02:51:52 -04:00
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Title: Block size increase to 2MB
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Author: Jeff Garzik <jgarzik@gmail.com>
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2016-11-30 09:47:31 +00:00
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Comments-Summary: No comments yet.
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Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-0102
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2015-06-23 02:51:52 -04:00
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Status: Draft
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Type: Standards Track
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Created: 2015-06-23
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</pre>
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==Abstract==
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2015-11-06 23:03:52 -05:00
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Simple, one-time increase in total amount of transaction data permitted in a block from 1MB to 2MB.
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2015-06-23 02:51:52 -04:00
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==Motivation==
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2015-12-17 23:21:13 -05:00
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# Continue current economic policy.
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# Exercise hard fork network upgrade.
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2015-06-23 02:51:52 -04:00
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==Specification==
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2015-12-17 23:21:13 -05:00
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# MAX_BLOCK_SIZE increased to 2,000,000 bytes at trigger point.
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2015-06-23 02:51:52 -04:00
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# Increase maximum block sigops by similar factor, preserving SIZE/50 formula.
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2015-12-18 08:39:00 -05:00
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# Trigger: (1) Block time 00:00:00 on flag day, AND (2) 95% of the last 1,000 blocks have signaled support.
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==Backward compatibility==
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2015-12-17 23:21:13 -05:00
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Fully validating older clients are not compatible with this change.
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The first block exceeding 1,000,000 bytes will partition older clients
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off the new network.
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2015-06-23 02:51:52 -04:00
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==Discussion==
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2015-12-17 23:21:13 -05:00
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In the short term, an increase is needed to continue to current
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economic policies with regards to fees and block space, matching
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market expectations and preventing market disruption.
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2015-06-23 02:51:52 -04:00
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2015-12-17 23:21:13 -05:00
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In the long term, this limit should focus on reflecting the maximum
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network engineering limit.
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2015-06-23 02:51:52 -04:00
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==Implementation==
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https://github.com/jgarzik/bitcoin/tree/2015_2mb_blocksize
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