PSA: Making builder submission cancellations optional
metachris opened this issue · comments
Chris Hager commented
Cancellations will start being opt-in at the Flashbots relay starting Tuesday, April 18!
If you want to use cancellations, please add this query arg to the block submission URL: ?cancellations=1
Full URL:
/relay/v1/builder/blocks?cancellations=1
Implementation
Context
Cancellations carry a performance penalty, because of the need to validate every single submission, whereas without cancellations we can discard submissions with a lower value, which will have a strongly positive impact on good submissions. (Note that right now we receive between 500 and 700 block submissions per slot).