---
title: "Acquia Source Release Notes - May 12, 2026"
date: "2026-05-11T09:28:28+00:00"
summary:
image:
type: "announcement"
url: "/acquia-source/release/2026-05-12/97641-acquia-source-release-notes-may-12-2026"
id: "80ee9b83-7349-41c2-84a3-81acb90aed5d"
---

Type

Related Ticket

Release Note

Feature

DAI-170

Acquia Source provides a minimal agent definition (`mcp-tester.md`) that enables developers to validate MCP server connectivity and tool invocation in local environments.

Feature

DAI-166

Acquia Source introduces an MCP server tool that enables agents to manage site logos, including file uploads and configuration updates.

Feature

DAI-164

Acquia Source provides a new `batch_add_components_to_page` tool that enables AI agents to insert multiple components in a single call, reducing round-trips and speeding up automated page building.

Feature

XB-2130

Acquia Source is updated to include a `meta.count` property in JSON:API list responses that enables clients to display pagination context.

Change

DAI-187

Acquia Source is enhanced to update the Nebula logo component to consume the site logo URL from `getSiteData()`, ensuring the UI reflects uploaded logos.

Change

DAI-174

Acquia Source is enhanced so that the browser tab tries to close, or displays a success message, after a successful MCP server OAuth redirect to non-HTTP schemes such as `cursor://`.

Change

XB-2089

Acquia Source is updated to ensure code deployments are atomic through default rollback on failure behavior for all users. Code deployments through Command Line Interface CLI and Github Integration are updated to ensure atomic deployments.

Change

ACMS-6051

Acquia Source is enhanced to upgrade the core Canvas module from v1.3.3 to v1.4.0.

Change

HAAS-2313

HAAS-2330

HAAS-2331

HAAS-2333

Acquia Source is enhanced to update several core dependencies. This release upgrades `drupal/autosave_form` to version 1.11.0, `drupal/redirect` to version 1.13.0, `drupal/memcache` to version 2.8.0, and `mcp/sdk` to version 0.5.0.

Fix

DAI-194

Stale page auto-saves overwrote newer component tree data pushed through the Drupal Canvas CLI.