Winter '27 for Developers

Slide deck from my talk at the October 2026 London Salesforce Developers event, covering the important changes in the Winter '27 release for developers.

Transcript

1. Winter ‘27 For Developers Keir Bowden, CTA, MVP HoF 1
2. General
3. Goodbye Standard Volume Platform Events - Winter ‘27 OAuth username-password flow for connected apps Winter ‘27 Feb 20th 2027 Use client credentials or web-server with PKCE extension Salesforce to Salesforce - Spring ‘27 Support ended Summer ‘26
4. Goodbye SOAP API login() call Not available since API v65.0 (Winter ‘26) API Versions v31.0 - v64.0 retiring Summer ‘27 Move to External Client Apps and OAuth - sforce.co/3IsCYBb Platform API versions v31.0 - v40.0 All REST APIs beneath /services/data/vXX.X Deprecated Summer ‘27 - no security updates Retired Summer ‘28 - API CALLS WILL FAIL Apex API Versions v9.0 - v19.0 : “a future release” Warnings at compile time
5. Permissions and Sharing Retain manual shares when record owner changes Sharing Settings -> Keep manual shares when transferring records Enable Profile Filtering Users can’t see profile names other than their own View All Profiles permission required to see others Release update, enforced Winter ‘27 Async Sharing Recalculation for some large-scale changes Apex/Flows relying on synchronous may break Release update, enforced Spring ‘27
6. List Views More Flexible Inline Editing Permissions Remove list view inline edit dependencies on page layout Make inline edits in list views with multiple record types User Interface Settings, off by default Bulk flow operations from List Views and Related Lists Mass quick action to trigger a flow Flow receives selected record ids
7. Agent Exchange (Beta) Request App Installs and Updates from your Admin
8. Agent Exchange (Beta) Assign Install Request Approvers in your Org
9. Preview Records in Reports (Beta)
10. Preview Records in Reports (Beta)
11. Low Code
12. Group Flow Elements
13. Filter Flow Collections without Loops
14. Monitor Flow Performance on Canvas
15. Flow Error Handling Field length violations caught on save Missing required fields caught on save Record lock contention retry • 10 second backoff • One retry
16. Flow Test Mode (Beta)
17. Flow Mocks for Actions and Subflows (Beta)
18. Pro Code
19. Lightning Web Components Third-party web components in LWC Generally Available Refresh lightning/stateManagerRelatedListRecords state manager data
20. Lightning Web Components Same-origin Salesforce URLs error in Spring ‘27 with LWS • Use detached programmatic anchors const a = document .createElement('a'); a.href = url; a.target = '_blank'; a.rel = 'noopener noreferrer'; a.click();
21. API Use latest version of REST API https://bb.my.salesforce.com/services/data/latest/sobjects/Account Explicit permission to use SOAP login() Use Any Api Auth Enforced December 1st
22. Apex Increased Heap Limits Synchronous Apex 10Mb (6Mb) Asynchronous Apex 25Mb (12Mb) Other limits remain the same Integration Tests (Developer Preview) Callout to any endpoint Includes External Services configured via Named Credentials Registered mocks take precedence
23. Apex Elastic limits for batch jobs (Beta) - exceed 24 hours async job limit Jobs are still queued Processing rate throttled Limited to 1 active job Override limit in non-production org to test
24. Apex Recompile only invalid classes/triggers
25. https://www.youtube.com/watch?v= 7F9zHTc5Lzo Winter ‘27 Webinar youtu.be/7aq5CNBhSIY Thank You