The block size debate
From 2013 to 2017 the list argued over the 1 MB block size limit more than over anything else. Bigger blocks meant more transactions per block and higher costs to run a node; the limit held, SegWit raised the effective size, and the losing side forked off as Bitcoin Cash. The 2015 threads are the loudest the list has ever been.
138 threads and 1,917 messages, 15 Jun 2012 to 28 Nov 2025.
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BIPs
The threads, in order
Listed by the date of each thread's first message.
2012 1 thread
- SatoshiDice and Near-term scalability Jeff Garzik5 messages
2013 5 threads
- Blocksize and off-chain transactions Gavin Andresen8 messages
- 15 messages
- On the optimal block size and why transaction fees are 8 times too low (or transactions 8 times too big) Michael Gronager8 messages
- 1. Re: On the optimal block size and why transaction fees are 8 Goss, Brian C., M.D.2 messages
- Even simpler minimum fee calculation formula: f > bounty*fork_rate/average_blocksize Michael Gronager16 messages
2014 1 thread
- Bitcoin XT Mike Hearn1 message
2015 92 threads
- Block Size Increase Matt Corallo116 messages
- Block Size Increase Requirements Matt Corallo75 messages
- Solution for Block Size Increase Nicolas Dorier2 messages
- 1 message
- Proposed alternatives to the 20MB step function Matt Whitlock69 messages
- Block Size Increase (Raystonn) Damian Gomez1 message
- 5 messages
- 10 messages
- 1 message
- soft-fork block size increase (extension blocks) Re: Proposed alternatives to the 20MB stepfunction Adam Back4 messages
- Proposal: A measured response to save Bitcoin Core Matt Whitlock4 messages
- Max Block Size: Simple Voting Procedure Stephen Morse7 messages
- Proposed alternatives to the 20MB step Jérôme Legoupil9 messages
- 7 messages
- Why do we need a MAX_BLOCK_SIZE at all? Jim Phillips4 messages
- 3 messages
- Meta suggestions for this block size debate Mats Henricson11 messages
- Block Size Increase Requirements cipher anthem3 messages
- Block Size Experiment Underway Tom Harding22 messages
- User vote in blocksize through fees Peter Todd42 messages
- Various block size proposals Bryan Bishop2 messages
- comments on BIP 100 Adam Back36 messages
- Scope narrowing for proposals to address block size limit debate, an inquiry Odinn Cyberguerrilla1 message
- 1 message
- Ninki Wallet view on blocksize debate Team Ninki2 messages
- Draft BIP : fixed-schedule block size increase Gavin Andresen62 messages
- Mempool size consensus + dynamic block size re-targetting Filipe Farinha5 messages
- The need for larger blocks Pieter Wuille61 messages
- A Proposed Compromise to the Block Size Limit Michael Naber43 messages
- 2 messages
- 6 messages
- 5 messages
- A possible solution for the block size limit: Detection and rejection of bloated blocks by full nodes. Peter Grigor4 messages
- Reaching consensus on policy to continually increase block size limit as hardware improves, and a few other critical issues Michael Naber1 message
- 2 messages
- BIP 102 - kick the can down the road to 2MB Jeff Garzik29 messages
- Block size following technological growth Pieter Wuille111 messages
- 2 messages
- A summary of block size hardfork proposals Johnson Lau3 messages
- 14 messages
- Block size hard fork Hector Chu3 messages
- A reason we can all agree on to increase block size Jim Phillips19 messages
- Eli Dourado on "governance" Gavin Andresen29 messages
- Wrapping up the block size debate with voting Johnson Lau10 messages
- 4 messages
- Analysis paralysis and the blocksize debate Ken Friece1 message
- 3 messages
- Fees and the block-finding process Gavin Andresen93 messages
- 18 messages
- 4 messages
- Adjusted difficulty depending on relative blocksize Jakob Rönnbäck19 messages
- Bitcoin XT 0.11A Mike Hearn47 messages
- Bitcoin XT Fork Satoshi Nakamoto62 messages
- Minimum Block Size Levin Keller5 messages
- Annoucing Not-BitcoinXT jyellen22 messages
- Dynamically Controlled Bitcoin Block Size Max Cap Upal Chakraborty7 messages
- Simplifying the blocksize limit debate Marcel Jamin1 message
- Dynamically Controlled Bitcoin Block Size Max Cap Upal Chakraborty24 messages
- 3 messages
- 6 messages
- 19 messages
- 10 messages
- Will there be a freeze of the current protocol version? Oliver Egginger2 messages
- Dynamically Controlled Bitcoin Block Size Max Cap Upal Chakraborty1 message
- 1 message
- Dynamically Controlled Bitcoin Block Size Max C Daniele Pinna1 message
- Dynamically Controlled Bitcoin Block Size Max Cap Upal Chakraborty1 message
- 26 messages
- Questiosn about BIP100 Andrew C5 messages
- Block size possible solution - to set minimum size Bdimych Bdimych3 messages
- Dynamically Controlled Bitcoin Block Size Max Cap [BIP 1xx - Draft] Upal Chakraborty13 messages
- Unlimited Max Blocksize (reprise) Daniele Pinna4 messages
- Variable Block Size Proposal Justin M. Wray4 messages
- 9 messages
- 1 message
- BIP 100 repo Jeff Garzik7 messages
- BIP 100 specification Jeff Garzik20 messages
- block size - pay with difficulty Jeff Garzik12 messages
- Dynamic limit to the block size - BIP draft discussion Washington Sanchez12 messages
- 3 messages
- 10 messages
- 15 messages
- 3 messages
- How to evaluate block size increase suggestions. Emin Gün Sirer6 messages
- 1 message
- 31 messages
- Block size: It's economics & user preparation & moral hazard Martijn Meijering1 message
- 10 messages
- 7 messages
- 18 messages
- 14 messages
- 2 messages
2016 11 threads
- BIP proposal: Increase block size limit to 2 megabytes Gavin Andresen42 messages
- Making a 2MB blocksize hardfork safer Anthony Towns1 message
- On Hardforks in the Context of SegWit Matt Corallo13 messages
- 4 messages
- Proposed BIP: Maximum block size consensus rule based on median block size (adaptive block size) Chris Kleeschulte2 messages
- 1 message
- *Changing* the blocksize limit Chris Priest3 messages
- Could a sidechain protocol create an addressable "Internet of Blockchains" and facilitate scaling? John Hardy2 messages
- 8 messages
- 24 messages
- 1 message
2017 23 threads
- BIP - 'Block75' - New algorithm t. khan12 messages
- Bitcoin Classic 1.2.0 released Tom Zander15 messages
- Proof-of-Loss Mirelo4 messages
- 16 messages
- Solution for blockchain congestion and determination of block size by bitcoin network/protocol itself. ashish khandekar6 messages
- Malice Reactive Proof of Work Additions (MR POWA): Protecting Bitcoin from malicious miners John Hardy15 messages
- Fraud proofs for block size/weight Luke Dashjr7 messages
- 81 messages
- 6 messages
- Segwit2Mb - combined soft/hard fork - Request For Comments Sergio Demian Lerner30 messages
- Hypothetical 2 MB hardfork to follow BIP148 Luke Dashjr13 messages
- Compatibility-Oriented Omnibus Proposal CalvinRechner8 messages
- 1 message
- A Segwit2x BIP Sergio Demian Lerner21 messages
- BIP103 to 30MB Erik Aronesty1 message
- 2 messages
- New difficulty algorithm needed for SegWit2x fork? Scott Roberts1 message
- 10 messages
- Why SegWit Anyway? Praveen Baratam10 messages
- BIP Idea: Marginal Pricing William Morriss12 messages
- BIP Proposal: Revised: UTPFOTIB - Use Transaction Priority For Ordering Transactions In Blocks LORD HIS EXCELLENCY JAMES HRMH13 messages
- 3 messages
- BIP Proposal: Revised: UTPFOTIB - Use Transaction Priority For Ordering Transactions In Blocks LORD HIS EXCELLENCY JAMES HRMH3 messages
2018 1 thread
- 6 messages
2019 3 threads
- 6 messages
- 7 messages
- Dynamic MaxBlockSize - 3 Byte Solution Trevor Groves9 messages
2025 1 thread
- 3 messages