# BUD-00 ## Blossom Upgrade Documents `draft` `mandatory` This document details the common language for all following BUDs ## Language All occurences of "MUST", "MUST NOT", "SHOULD", "SHOULD NOT" MUST be interpreted as per [RFC 2119](https://www.rfc-editor.org/rfc/rfc2119) ## BUDs BUDs or "Blossom Upgrade Documents" are short documents that outline an additional requirement or feature that a blossom server MUST or MAY implement. ## Blobs Blobs are raw binary data addressed by the sha256 hash of the data.