# Upcoming relay feature: allowing builders to cancel previous block submissions

**URL:** https://collective.flashbots.net/t/upcoming-relay-feature-allowing-builders-to-cancel-previous-block-submissions/600
**Category:** Relays
**Created:** [October 19, 2022, 1:38pm UTC](https://collective.flashbots.net/t/upcoming-relay-feature-allowing-builders-to-cancel-previous-block-submissions/600 "2022-10-19T13:38:51Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![metachris](https://collective.flashbots.net/user_avatar/collective.flashbots.net/metachris/32/6_2.png) [@metachris](https://collective.flashbots.net/u/metachris)
#### Post date: [October 19, 2022, 1:38pm UTC](https://collective.flashbots.net/t/upcoming-relay-feature-allowing-builders-to-cancel-previous-block-submissions/600/1 "2022-10-19T13:38:51Z")

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The Flashbots mev-boost relay will soon allow block builders to cancel submitted blocks, by having new blocks overwrite previous submissions even when less profitable:

See also the issue on Github: [Upcoming feature: allowing block builders to cancel previous submissions · Issue #202 · flashbots/mev-boost-relay · GitHub](https://github.com/flashbots/mev-boost-relay/issues/202)