After the announcement of the release of version 30 of Bitcoin Core, the Bitcoin community has had mixed reactions. This update brings numerous upgrades related to node architecture, performance, and security.
The main changes in Bitcoin Core 30.0 include: the introduction of optional encrypted connections between nodes to enhance privacy, and an increase in the data limit for OP_RETURN in the Bitcoin Core software from 80 bytes to 100,000 bytes, significantly increasing the amount of non-financial data that can be embedded in Bitcoin transactions.
The announcement on Sunday stated: "With the release of this new major version, versions 27.x and earlier have entered the 'end of life' phase and will no longer receive updates."
While the update also includes bug fixes, performance improvements, and changes in fee rates, the most controversial issue in the community is the increase in the OP_RETURN limit.
Such a significant change in data limits makes it possible to develop more complex and data-intensive decentralized applications on the network, but it has also angered Bitcoin purists who believe the network should only be used for financial transactions.
Although this is not a change at the protocol level, the current controversy is reminiscent of the block size debate in 2017, which ultimately led to the hard fork of Bitcoin into Bitcoin Cash.
On Friday, Alex Bergeron, head of the Ark Labs ecosystem, stated on X that he plans to "utilize all the new OP_RETURN space and make Bitcoin more like Ethereum (ETH), and better."
Pavol Rusnak, co-founder of Satoshi Labs, also stated yesterday that he chose Bitcoin Core v30 because of its "excellent development team, peer-reviewed code," and "rational engineering decisions."
However, many hold reservations, arguing that this goes against the fundamental principles of Bitcoin as a peer-to-peer electronic cash system, potentially leading to blockchain bloat, increased node maintenance costs, and legal risks.
Many node operators have adopted a node software called "Knots" as an alternative, which allows them to set strict data size limits for transactions (such as 80 bytes).
Last week, pioneering cryptographer Nick Szabo stated on X: "As a (hopefully) temporary measure, run Knots. I strongly advise against upgrading to Core v30."
Earlier this month, Szabo pointed out that node operators might face risks for hosting "illegal data" and raised concerns about the legal risks following the increase in data limits.
On October 2, he noted on X: "If protections are not added to allow archival node operators to delete illegal content without interference, they often bear criminal liability."
Luke Dashjr, the founder of Knots, has not commented on the update since its launch, but he has previously been critical of the latest updates to Bitcoin Core.
Data shows that many node operators are using Knots software, with BitRef's data indicating that there are currently 5,114 Knots nodes, accounting for 21.48% of all Bitcoin nodes.
Related: Bitcoin (BTC) ETF continues strong performance in "Uptober," with weekly net inflows reaching $2.71 billion.
Original article: “Bitcoin (BTC) Core v30 officially released, OP_RETURN changes spark controversy”
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