Bitcoin Core v30.0 Update Stirs Controversy Over OP_RETURN Expansion

2025-10-09 20:46

The Bitcoin Core project has released version 30.0 for testing, sparking debate within the cryptocurrency community. The update's most contentious change is the increase in the OP_RETURN data limit from 80 bytes to 100,000 bytes. This feature, originally designed by Satoshi Nakamoto, has drawn criticism from prominent figures like Nick Szabo and Adam Back, with Szabo advising against upgrading. Adam Back emphasized the historical context of OP_RETURN, noting its 15-year legacy. In addition to the OP_RETURN modification, the update introduces TRUC transaction support, further expanding Bitcoin's functionality. The community remains divided on the implications of these changes for Bitcoin's future.

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