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📅 Timeframe: July 12, 22:00 – July 15, 22:00 (UTC+8)
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Bitcoin Core 30 Update to Raise Limit on Controversial OP_RETURN - Unchained
The upcoming Bitcoin Core 30 update, scheduled for release in October, will significantly increase the data limit for the OP_RETURN function — a special operational code that allows users to embed arbitrary data in Bitcoin transactions.
In a statement posted on GitHub, developers said the default OP_RETURN data limit would be increased from the current 80 bytes to nearly 4MB, a change that aligns with Bitcoin’s existing block size limits and which is intended to address issues involving data storage techniques and the unspent transaction output set.
OP_RETURN has long been a point of contention, due mainly to its tension with Bitcoin’s core values of minimalism, decentralization, and resistance to bloat.
This story is an excerpt from the Unchained Daily newsletter.
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Critics argue that removing or significantly increasing the OP_RETURN data limit will encourage more non-financial data to be stored on the blockchain, making it slower
Supporters, conversely, contend that an OP_RETURN data increase will enable new use cases and align with the ways in which Bitcoin is actually being used.