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Dynamics 365 Business Central: Development - Evolve AL interfaces with default implementations

Roadmap ID
573352
View in M365 Roadmap
Product
Dynamics 365 Business Central
Published
September 30, 2026
Status
Launched
Cloud Instance
Worldwide (Standard Multi-Tenant)
Release Phase
General Availability
Platform
Web
Expected Release
October 2026

Description

"Add default method bodies to AL interfaces so existing implementors continue working, then use RequiredPending and analyzer rules to introduce required methods safely. Business value: Extension publishers can add behavior to an interface without immediately requiring every implementing extension to change. Default methods provide a compatible implementation, while the new transition attribute and AppSourceCop rules support a managed path toward making a method mandatory in a future version. This reduces disruptive interface upgrades and gives dependent developers time to adopt new contracts."

Change History

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No change history available

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