---
title: "UCP 2026-08-25 release adds 3DS2 | Agent Ready Checkout"
description: "25 Aug 2026: UCP published protocol version 2026-08-25 with a multi-vertical refactor, 3DS2 payments security and grocery readiness."
canonical: https://agentreadycheckout.com/news/2026-08-25-ucp-release-2026-08-25-adds-3ds2-and-multi-vertical
site: "Agent Ready Checkout"
last_updated: 2026-11-04
date: 2026-08-25
section: "News"
---

# UCP 2026-08-25 release adds 3DS2 | Agent Ready Checkout

> 25 Aug 2026: UCP published protocol version 2026-08-25 with a multi-vertical refactor, 3DS2 payments security and grocery readiness.

Source: https://agentreadycheckout.com/news/2026-08-25-ucp-release-2026-08-25-adds-3ds2-and-multi-vertical
Site: Agent Ready Checkout
Last reviewed: 2026-11-04

News, 25 Aug 2026

# UCP release 2026-08-25 adds 3DS2 and multi-vertical refactor

In short

UCP published protocol version 2026-08-25 with a multi-vertical refactor, 3DS2 payments security and grocery readiness. Shopify's agent docs show sample agent profiles declaring this version. The matrix entry to read next for this 25 Aug 2026 item is UCP on Shopify, which is live as of 4 Nov 2026.

## What was reported

UCP published protocol version 2026-08-25 with a multi-vertical refactor, 3DS2 payments security and grocery readiness. Shopify's agent docs show sample agent profiles declaring this version.

Primary source: [ucp.dev](https://ucp.dev/documentation/announcements/), read 4 Nov 2026.

## Where it sits in the matrix

-   [Shopify](https://agentreadycheckout.com/platforms/shopify): 1 live, 0 pilot, 1 announced and 0 not supported in the matrix.

## Other items from August 2026

-   31 Aug 2026 [Shopify Storefront MCP cart tools reach end of maintenance](https://agentreadycheckout.com/news/2026-08-31-shopify-storefront-mcp-cart-tools-reach-end-of)
-   20 Aug 2026 [commercetools adds storefront, delivery estimate and carrier fields for agentic checkout](https://agentreadycheckout.com/news/2026-08-20-commercetools-adds-storefront-delivery-estimate-and)
-   14 Aug 2026 [Amazon Conditions of Use carry Agent Terms requiring agents to self-identify](https://agentreadycheckout.com/news/2026-08-14-amazon-conditions-of-use-carry-agent-terms-requiring)

## Sources

1.  [ucp.dev/documentation/announcements/](https://ucp.dev/documentation/announcements/), read 4 Nov 2026

Last reviewed 4 Nov 2026

## Edition

Matrix edition of 4 Nov 2026.

Reviewed 4 Nov 2026, [1 sources](#sources-h).

## Method

[How cells, sources and read dates are defined](https://agentreadycheckout.com/method)