---
xip: 19
title: Deprecate the Composite Codec
description: Proposal to deprecate the Composite Codec
author: Naomi Plasterer (@nplasterer)
discussions-to: https://community.xmtp.org/t/deprecate-the-composite-codec/525
status: Final
type: Standards
category: XRC
created: 2024-01-09
replaces: XIP-9
---
## Abstract
This is a proposal to deprecate the Composite Codec defined by [XIP-9 Composite Content Type](https://github.com/xmtp/XIPs/blob/main/XIPs/xip-9-composite-content-type.md).
This content type was meant to be used for multi-part messages where the parts can be of any content type, and the composite parts can be arbitrarily nested.
## Motivation
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