A user-activated soft fork (UASF) is a type of software upgrade that requires users to update their nodes on the blockchain in order for it to be implemented. Full definition
Tension is ratcheting up as the August 1 deadline for the BIP148 User Activated Soft Fork (UASF) approaches. (bitcoinist.com)
UASF stands for User Activated Soft Fork. (segwit.org)
The temporary freezing of dealing platform is expected to save both Bitcoin operators and investing public from the unwanted confusion which might crop up from the much hyped split nomenclatured as User Activated Soft Fork (UASF). (kryptomoney.com)