Bitcoin Core to unilaterally remove controversial OP-Return limit

The change will remove a limit on the amount of arbitrary data that can be added to Bitcoin transactions.

Bitcoin Core developers have decided to remove a limit on transaction data in the next network upgrade, enabling more data to be included in a more efficient way. 

“Bitcoin Core’s next release will, by default, relay and mine transactions whose OP_RETURN outputs exceed 80 bytes and allow any number of these outputs,” read the announcement on GitHub by Bitcoin developer Greg Sanders on May 5. 

The long-standing limit was originally a “gentle signal that block space should be used sparingly for non-payment proof of publication data,” has outlived its utility, he added. 

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