--- title: The Salesforce Developer’s Guide to the Summer ’26 Release description: Salesforce Summer '26 release brings major developer updates across several areas. Headless 360 is the headline theme, introducing hosted MCP servers (standard... canonical: https://daily.dev/posts/the-salesforce-developer-s-guide-to-the-summer-26-release-btyw1itrt twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: The Salesforce Developer’s Guide to the Summer ’26 Release | daily.dev og:description: Salesforce Summer '26 release brings major developer updates across several areas. Headless 360 is the headline theme, introducing hosted MCP servers (standard... og:url: https://daily.dev/posts/the-salesforce-developer-s-guide-to-the-summer-26-release-btyw1itrt og:image: https://api.daily.dev/og/posts/BtYw1ItRt.png og:image:alt: The Salesforce Developer’s Guide to the Summer ’26 Release og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # The Salesforce Developer’s Guide to the Summer ’26 Release **[Salesforce Developers Blog](https://daily.dev/sources/salesforcedevs)** · 25 min read · 0 upvotes · 0 comments ## Summary Salesforce Summer '26 release brings major developer updates across several areas. Headless 360 is the headline theme, introducing hosted MCP servers (standard and custom) that connect AI clients like Claude or Cursor to Salesforce orgs via OAuth. LWC gains State Managers (GA) for external reactive state management using defineState/atom/computed primitives, a new lightning/accApi module to drive the Agentforce panel from components, virtualized dynamic lists, and LWS security tightening that blocks data: URIs. Apex at API 67.0 defaults database operations to user mode, makes 'with sharing' the default, retires WITH SECURITY_ENFORCED, and adds multiline strings plus String.template(). Agentforce updates include Agent Script going GA and open-source, Multi-Agent Orchestration (Beta), Agentforce Mobile SDK for iOS/Android/React Native, and a new Data Library Connect API for RAG grounding. Data 360 adds Code Extension for custom Python scripts and a SET OPTIONS SOQL clause. Tooling updates include Agentforce Vibes 2.0 (Developer Preview), a browser-based Web Console (Beta), and a Metadata Visualizer VS Code extension. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [The Salesforce Developer’s Guide to the Spring ’26 Release](https://daily.dev/posts/the-salesforce-developer-s-guide-to-the-spring-26-release-f61k1davr) · Salesforce Developers Blog · 0 upvotes · 0 comments - [The Salesforce Developer’s Guide to the Winter ’26 Release](https://daily.dev/posts/the-salesforce-developer-s-guide-to-the-winter-26-release-fknn7jse1) · Salesforce Developers Blog · 0 upvotes · 0 comments --- Tags: [#webdev](https://daily.dev/tags/webdev), [#mcp](https://daily.dev/tags/mcp), [#salesforce](https://daily.dev/tags/salesforce) [View this post on daily.dev](https://daily.dev/posts/the-salesforce-developer-s-guide-to-the-summer-26-release-btyw1itrt) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"The Salesforce Developer’s Guide to the Summer ’26 Release","url":"https://daily.dev/posts/the-salesforce-developer-s-guide-to-the-summer-26-release-btyw1itrt","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/the-salesforce-developer-s-guide-to-the-summer-26-release-btyw1itrt"},"datePublished":"2026-06-08T16:27:17.497Z","dateModified":"2026-06-09T02:19:57.758Z","description":"Salesforce Summer '26 release brings major developer updates across several areas. 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