Developer Proposes Hybrid SegWit Solution to Bitcoin's Block Size Debate
A new proposal seeks to combine two solutions to bitcoin's block size debate into one compromise to move the network forward.

A new proposal submitted to the Bitcoin Core developer list this weekend has proposed an alternative solution to bitcoin's long-simmering scaling debate.
Proposed by developer Sergio Lerner, "Segwit2MB" seeks to combine Segregated Witness, the proposal put forward by Bitcoin Core, the network's volunteer developer team, and an increase of the block size to 2 MB, first outlined in BIP 102.
The proposal would still require 95% miner support to enact SegWit, though the proposal would begin a countdown to a network-wide backwards incompatible block size change on 14th December, 2017. (The block size hard fork would only occur if SegWit were to reach the consensus threshold and be activated).
Following a brief comment period, Lerner plans to formally add the Segwit2mb to the Bitcoin Core Github page as a Bitcoin Improvement Proposal (BIP).
The patch currently being proposed would modify the existing 120 lines of code comprising Bitcoin Core and add an additional 220 lines of testing code. However, this is subject to change following the comment period.
Lerner’s hypothesis is that by appeasing both sides of the scaling debate that consensus will be reached more quickly, ultimately settling a conflict that has drawn on for years.
He wrote:
"Segwit2Mb is the project to merge into Bitcoin a minimal patch that aims to, untangle the current conflict between different political positions regarding segwit activation vs. an increase of the on-chain blockchain space through a standard block size increase. It is not a new solution, but it should be seen more as a least common denominator."
Paint mixing image via Shutterstock
More For You
Protocol Research: GoPlus Security

What to know:
- As of October 2025, GoPlus has generated $4.7M in total revenue across its product lines. The GoPlus App is the primary revenue driver, contributing $2.5M (approx. 53%), followed by the SafeToken Protocol at $1.7M.
- GoPlus Intelligence's Token Security API averaged 717 million monthly calls year-to-date in 2025 , with a peak of nearly 1 billion calls in February 2025. Total blockchain-level requests, including transaction simulations, averaged an additional 350 million per month.
- Since its January 2025 launch , the $GPS token has registered over $5B in total spot volume and $10B in derivatives volume in 2025. Monthly spot volume peaked in March 2025 at over $1.1B , while derivatives volume peaked the same month at over $4B.
More For You
Coinbase Sees Crypto Recovery Ahead as Liquidity Improves and Fed Rate Cut Odds Climb

The crypto exchange also took note of a so-called AI bubble that continues to go strong and a weaker U.S. dollar.
What to know:
- Coinbase Institutional is seeing a potential December recovery in crypto, citing improving liquidity and a shift in macroeconomic conditions that could favor risk assets like bitcoin.
- The firm's optimism is driven by rising odds of Federal Reserve rate cuts, with markets pricing in a 93% chance easing next week, and improving liquidity conditions.
- Several recent institutional developments, including Vanguard's crypto ETF policy reversal and Bank of America's greenlighting of crypto allocations, have contributed to bitcoin's rebound from recent lows.











