BIP-110 UASF enforcement begins with minimal miner backing at 2.53%

The BIP-110 Situation Monitor confirmed that Bitcoin reached the activation point for User-Activated Soft Fork enforcement, marking the beginning of what backers describe as the network's most significant governance challenge. Under the new framework, miners must use version bit 4 to indicate support for BIP-110, or their blocks will be rejected by nodes running the modified software.

BIP-110 aims to restrict non-financial uses of Bitcoin block space, including text, images, and inscriptions, by temporarily limiting certain Taproot features and data-storage mechanisms for approximately one year. Supporters argue this would reduce storage and bandwidth demands while keeping Bitcoin focused on monetary functions.

However, miner adoption remains extremely limited. Of the 2,016 blocks preceding the enforcement phase, only 51—roughly 2.53%—signaled support for BIP-110. This falls far below the 55% threshold the proposal set for activation without a contentious chain split, indicating miners have not embraced the change in significant numbers.

The governance question at stake extends beyond data restrictions. The dispute centres on who holds authority to set Bitcoin's rules—miners, node operators, developers, or users—and the consequences when these groups disagree. Because miners control the hash power that produces blocks, continued non-compliance could result in two separate chains: one following current Bitcoin rules and another enforcing BIP-110 rules. Critics, including investor Michael Saylor, have raised objections, arguing that anyone paying transaction fees should have unrestricted access to block space.