Bitcoin Core version 30, scheduled for release in October 2025, will increase the OP_RETURN data limit from 80 bytes to nearly 4 MB

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June 9, 2025

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Bitcoin Core's v30 will increase the OP_RETURN limit from 80 bytes to 4MB, sparking debates over Bitcoin's scalability and decentralization.
Bitcoin Core 30, set for release in October, will increase the OP_RETURN data transaction limit from 80 bytes to nearly 4MB.

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Week 24 of 2025
06/09/2025