Emergency Hard Fork

Definition ∞ An emergency hard fork is a critical, non-backward-compatible upgrade to a blockchain protocol implemented rapidly to address severe issues, such as security vulnerabilities or catastrophic bugs. This type of fork creates a new, distinct version of the blockchain, requiring all network participants to upgrade their software to follow the new rules. It is typically a last resort measure to preserve network integrity or prevent significant losses.
Context ∞ News about an emergency hard fork usually indicates a significant event in a blockchain’s operational history, often arising from an urgent need to rectify a critical system flaw. These events highlight the governance mechanisms and community consensus necessary to enact such fundamental changes. The successful execution of an emergency hard fork demonstrates a network’s capacity to adapt and recover from unforeseen challenges.