Bitcoin Nodes Signal Support for BIP-110 Amid Community Debate

The number of Bitcoin nodes indicating support for Bitcoin Improvement Proposal 110 (BIP-110) has increased to 2.38%. According to Cointelegraph, 583 out of 24,481 nodes are currently running BIP-110, with Bitcoin Knots being the primary node software implementation for this temporary soft fork. BIP-110 aims to limit the size of transaction outputs to 34 bytes and cap the OP_RETURN data limit to 83 bytes. This temporary measure is set to last for one year, with the possibility of extension or modification thereafter, as detailed on the proposal’s GitHub page. The OP_RETURN script code, which allows users to embed arbitrary data, has been a contentious topic within the Bitcoin community, especially following the release of Bitcoin Core version 30. This latest upgrade of the widely used Bitcoin node software removed the OP_RETURN limit, which had been capped at 83 bytes. The change, introduced through a controversial pull request first proposed in April 2025, faced significant opposition from the Bitcoin community. The update went live in October 2025, leading to criticism that removing the arbitrary data limit could encourage spam on the Bitcoin ledger. Critics argue that the increase in arbitrary data raises the storage costs of running a Bitcoin node, potentially leading to greater centralization of the network. Unlike high-throughput blockchains that require specialized hardware, Bitcoin nodes can typically be run on consumer-grade computers. However, increasing hardware requirements could undermine Bitcoin's value proposition as a decentralized monetary network. Bitcoin advocate Matthew Kratter likened the situation to a parasitical plant overwhelming a tree, suggesting that spam could similarly threaten Bitcoin's structure. Conversely, Bitcoin Core contributor Jameson Lopp supports the uncapped OP_RETURN limit, asserting that filters are ineffective in preventing spam on the network.