On June 10th, it was reported that the Bitcoin Core developer team has clearly planned to officially release the 30th version of the Bitcoin Core software in October this year. The newly released version this time will bring a highly anticipated major change, that is, the OP_RETURN output containing a large amount of non-financial data will no longer be filtered.
OP_RETURN is an opcode in Bitcoin scripts, which is used to mark the transaction output as invalid. Because its output cannot be spent, it is often used to store data on the blockchain. Previously, the Bitcoin network had strict limits on the data storage capacity of OP_RETURN, allowing only 80 bytes of space by default. In the upcoming 30th version of the software, this limit will be significantly relaxed, and the default data carrier limit will be raised to nearly 4MB. Meanwhile, in order to enable node operators to control data storage more flexibly, the new version also allows them to manually modify the two parameters -datacarrier and -datacarriersize.
This change has sparked widespread discussions in the Bitcoin community. Some developers believe that this will bring more possibilities for the application expansion of the Bitcoin blockchain, such as supporting more complex decentralized applications and achieving richer data recording. However, some conservative developers are also concerned about this. They worry that the storage of a large amount of non-financial data might lead to the expansion of blockchain data, affecting the performance and stability of the Bitcoin network.
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