Retirement: TLS 1.0 and TLS 1.1 in Azure App Service, Azure Functions, and Azure Logic Apps

As part of Azure’s ongoing security improvements, App Service, Functions, and Logic Apps will no longer accept connections using TLS 1.0 or TLS 1.1 after May 31, 2027. Any client, application, or service that continues to use these legacy TLS versions will be unable to connect to these services after his date.

Customers should review the applications and services that connect to App Service, Functions, or Logic Apps and ensure they support TLS 1.2 or later prior to this date.

View the resources in your subscription that still allow TLS 1.0 or 1.1 in the Azure Retirement Workbook.

Next steps

Test client compatibility with TLS 1.2 or later. Review the TLS version deprecation overview for configuration guidance and see the service‑specific Q&A links below for common questions.

Learn more:

• App Service TLS deprecation Q&A
• Functions TLS deprecation Q&A
• Logic Apps TLS deprecation Q&A