The Salesforce Spring ’26 release delivers significant quality-of-life improvements for developers, including new Lightning Web Components capabilities, enhanced Apex data processing, and critical security migrations that require immediate attention.
What’s New
On the Lightning Web Components front, developers now have full TypeScript support, runtime event handler assignment (eliminating the need to hardcode every handler in templates), and two new SLDS-compliant base components — lightning-empty-state and lightning-illustration — that provide polished empty state experiences with zero custom styling.
Apex Cursors enable developers to process massive datasets efficiently, significantly reducing the overhead of managing large data operations. Einstein Conversation Insights data is now stored natively on the Salesforce platform, making it accessible through standard reports and automations like Flow and Apex for the first time.
On the security migration front, several changes require action. The ability to create new Connected Apps is now disabled by default — Salesforce is directing all new integrations to External Client Apps. Session IDs can no longer be sent in outbound messages as of February 16, 2026 (use OAuth instead). And Triple DES for SAML SSO configurations will stop working entirely in Summer ’26, requiring migration to AES 128 or AES 256.
Additionally, Salesforce has introduced a Targeted Test Run capability that analyzes code dependencies to identify only the tests that cover components being deployed, significantly reducing deployment times for large orgs.
What Enterprises Should Do Now
The Connected Apps retirement is a critical action item. Organizations should audit existing integrations to identify any Connected Apps and plan migration to External Client Apps. The Triple DES deadline (Summer ’26) also requires immediate attention for any orgs using legacy SAML configurations.
Incepta’s Forward Deployed Engineering team can conduct an integration audit to identify affected components and execute the migration before the deadlines.
Official Source: Salesforce Developer Blog — Developer’s Guide to Spring ’26
