The number of Bitcoin nodes (BTC) signaling support for Bitcoin Improvement Proposal 110 (BIP-110) – a temporary upgrade aimed at limiting the amount of data included in each transaction at the consensus level – has increased to 2.38%.
According to data from The Bitcoin Portal, currently 583 out of a total of 24,481 nodes are running BIP-110, with the main software used being Bitcoin Knots to implement this temporary upgrade.
BIP-110 sets the output size limit of transactions at 34 bytes and the OP_RETURN data limit at 83 bytes. This temporary upgrade is expected to be applied for one year, with the possibility of extension or adjustment after that period, according to information from the proposal’s GitHub page.
Implementation schedule of BIP-110 | Source: BIP-110.org OP_RETURN is a scripting code that allows users to embed arbitrary data into transactions, which has become a hotly debated topic within the Bitcoin community after version 30 of Bitcoin Core – the latest upgrade of the most popular node software – was released.
Previously, the OP_RETURN limit was set at 83 bytes, but Bitcoin Core developers unilaterally removed this limit in version 30, following a controversial pull request (pull request) proposed in April 2025. This move faced widespread opposition from the Bitcoin community.
Pull request (pull request) proposing to remove arbitrary data limits on Bitcoin | Source: GitHub## The issue of arbitrary data has caused deep divisions within the Bitcoin community
The Bitcoin Core update removing data limits was officially released in October 2025, sparking criticism from critics who argue that removing arbitrary data limits will promote spam on the Bitcoin ledger.
Increasing arbitrary data capacity also raises storage costs for running a Bitcoin node, leading to the risk of network centralization as operational costs become too high for average users.
Hardware requirements to run a Bitcoin node | Source: Cointelegraph Unlike high-throughput blockchains, which generate large amounts of data and require specialized hardware, current Bitcoin nodes can still operate on regular personal computers. However, if hardware requirements increase, the core value of Bitcoin as a decentralized monetary network could be affected, according to experts.
Educator and Bitcoin supporter Matthew Kratter shared his view:
“This is like a parasitic plant, such as ivy, covering and corroding the trunk, causing the internal structure to collapse. Ivy also collapses because it destroys the structure. This is the risk that spam can pose to Bitcoin.”
Conversely, some opinions like that of Jameson Lopp – a Bitcoin Core contributor – support not limiting OP_RETURN, arguing that current filters are not truly effective in preventing spam on the network.
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