Salesforce Summer '26 Release: Developer Highlights You Shouldn't Miss
I've been exploring the Summer '26 release, and here are some exciting updates for Salesforce Developers that will improve productivity, security, and application development.
My top takeaways:
๐ต THE BIG THEME: HEADLESS 360
Every major Salesforce capability โ data, automation, agents, grounding โ is now available as an API, MCP tool, or CLI command. Accessible by apps, humans, or autonomous AI agents.
This changes how we think about building on Salesforce.
โก KEY HIGHLIGHTS:
1๏ธโฃ Salesforce Hosted MCP Servers (GA)
Connect Claude, ChatGPT, Cursor, or your own custom agents directly to your Salesforce org โ via standard OAuth, zero extra infrastructure. Custom MCP tools can now be built from Apex Actions, Flows, Apex REST, and even Agentforce agents themselves.
2๏ธโฃ LWC State Managers (GA)
The biggest LWC upgrade in this release. Data and business logic now live outside components in a dedicated, reusable, testable layer. Cleaner architecture. Less spaghetti code.
3๏ธโฃ Apex Security Defaults Tightened (API 67.0)
SOQL, DML, and SOSL now default to USER MODE โ enforcing FLS, object permissions, and sharing rules automatically. Classes without a sharing keyword now default to "with sharing". Security is no longer something you opt into. It's the default.
โ ๏ธ Important: SOAP login() retires in Summer '27. If your integrations still use username/password over SOAP โ migrate to OAuth/JWT now.
4๏ธโฃ Agent Script Agentforce Builder (GA)
Agent Script โ the scripting language for AI agents โ is now generally available and open-sourced under Apache 2.0. The new Agentforce Builder becomes the default from July 13, 2026.
5๏ธโฃ Agentforce Mobile SDK
Embed your agents natively in iOS, Android, and React Native apps โ with a pre-built chat UI or fully headless. One TypeScript codebase. Both platforms.
6๏ธโฃ Developer Tooling Upgrades
โ Agentforce Vibes 2.0 (Developer Preview) โ plans tasks, asks clarifying questions before acting, integrates MCP natively
โ Web Console (Beta) โ a full IDE inside your org, right in the browser
โ ApexGuru โ flags SOQL-in-loops and other anti-patterns inline in your coding agent
โ Metadata Visualizer โ turns raw XML into interactive visual diagrams
7๏ธโฃ Multi-Agent Orchestration (Beta)
One orchestrator agent, multiple specialist subagents. One unified experience for the user. This is where enterprise AI automation is heading.
Summer '26 isn't just a feature release. It's a platform shift.
Salesforce is betting that the future of development is agentic, headless, and AI-native โ and they're shipping the infrastructure to prove it.
Are you exploring any of these features in your org? Drop a comment โ would love to hear
what's on your radar. ๐
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