Newsletter Sep'26 Medusa shipped five Core releases spanning v2.20.0 through v2.21.2 in September 2026, adding a Search Module for defining and querying indexes through the Store API in v2.21.1, fractional inventory by weight, length or volume, and store-credit accounts in v2.21.1. The company also opened a beta for a commerce MCP that brings Medusa's APIs into AI tools on Cloud, and said v2.21.0 includes an important Store API security update that makes upgrading to the latest version advisable. Medusa Search, which runs on PostgreSQL locally and as a managed provider on Medusa Cloud, is claimed to cost 50–80% less than Algolia and MeiliSearch depending on the search workload. Blog https://medusajs.com/blog Commerce MCP We’re looking for beta users to help shape our new commerce MCP, which will bring Medusa’s APIs into your AI tools on Cloud. Sign up for the Beta https://forms.gle/v4kAPJxMGi4tJ2xq9 Core changelog Five Core releases shipped https://medusajs.com/changelog/ in September, spanning v2.20.0 through v2.21.2. The main updates include: - Search Module: Define indexes for products or other data models and query them through the Store API in v2.21.1 https://github.com/medusajs/medusa/releases/tag/v2.21.1 . - Payment and MFA security: v2.20.0 https://github.com/medusajs/medusa/releases/tag/v2.20.0 validates payment providers against a cart's region and requires a completed MFA challenge for protected routes. - Fractional inventory: Track quantities by weight, length, or volume with units of measure in v2.20.0 https://github.com/medusajs/medusa/releases/tag/v2.20.0 . - Calculated draft-order shipping: Use third-party calculated rates when an operator creates an order in v2.20.0 https://github.com/medusajs/medusa/releases/tag/v2.20.0 . - Store API performance: v2.20.0 https://github.com/medusajs/medusa/releases/tag/v2.20.0 caps deeply nested relation expansion on public routes. - Reusable Admin building blocks: v2.21.0 https://github.com/medusajs/medusa/releases/tag/v2.21.0 exports dashboard components, hooks, and utilities for custom Admin views. - Store credit management: v2.21.1 https://github.com/medusajs/medusa/releases/tag/v2.21.1 lets Admin users create store-credit accounts and debit them. - Security Update: v.2.21.0 includes an important security update https://medusajs.com/blog/medusa-v2-21-0-security-update in the store API. We therefore recommend that you upgrade to the latest version. See the full release notes https://github.com/medusajs/medusa/releases for upgrade details. Cloud changelog The Medusa Cloud changelog https://docs.medusajs.com/cloud/changelog brought new controls for search, usage, and environments: - Medusa Search: Built-in Search provider for free-text and semantic search more below . - Search analytics: See search volume, empty results, popular terms, and response times for your indexes. - Database access: Enable or disable read access and rotate connection passwords from the dashboard. - Team ownership: Promote organization members to Owner from team settings. Medusa Search Announcement Medusa Search https://medusajs.com/search/ brings keyword, semantic, and hybrid search into Medusa, with indexes that stay in sync with your application. The Search Module runs on PostgreSQL locally, while the managed Medusa Search provider is available on Medusa Cloud. More in the announcement https://medusajs.com/blog/announcing-medusa-search . Medusa Search compared to Algolia & MeiliSearch Our comparison post https://medusajs.com/blog/medusa-search-algolia-meilisearch covers setup, search capabilities, pricing, and migration paths, and shows how Medusa Search can cost 50–80% less depending on the search workload. And you get access to our quick migration guides. Healthletic: 30% conversion uplift from Shopify Healthletic migrated its subscription business from Shopify Plus to Medusa https://medusajs.com/blog/healthletic and lifted checkout conversion by 30% and saved $300K in annual fees. Today, they handle 240,000+ orders per year on Medusa. 24 new community integrations The September integrations roundup https://medusajs.com/blog/integrations-sep-26 covers an incredible 24 community additions: product feeds for Google and Meta, Order Comments, an update to MercadoPago, and much more. Explore them in the Integration Directory https://medusajs.com/integrations/ . Agent automations of releases and changelog Learn how we work with agents to do automations like Medusa releases https://medusajs.com/blog/agentic-automation-automated-releases-and-changelog , from documentation changes and draft release notes to changelog entries for Core and Cloud. Skills and MCP that evolve with Medusa Our agentic documentation workflow https://medusajs.com/blog/agentic-automation-skills-and-mcp-that-evolve-with-our-product carries documentation changes into Medusa's agent skills and Docs MCP server. Updates open reviewable pull requests so the tools developers use can keep pace with the product. Community highlights Selected highlights from our community: - Rigby built the Medusa commerce backend for PortAventura World https://www.rigbyjs.com/case-studies/portaventura-world , unifying tickets, hotel reservations, and extras across three parks, ten hotels, and 5.3M+ yearly visitors. - Raj https://www.linkedin.com/in/raj-mahil/ at 306 Technologies shared a video testing Jev with Medusa https://www.youtube.com/watch?v=noM ITCFd4k to choose a fulfillment warehouse based on inventory, delivery time, cost, and workload. - Vaimo announced its Hedengren project https://www.linkedin.com/feed/update/urn:li:activity:7510277251804962819/ , a large-scale Nordic B2B commerce platform and customer portal with Medusa at its core.