Azure key dates

Every dated Azure change that forces action, in one place: end-of-life and end-of-support deadlines, plus announced pricing changes, configuration-default changes, retirements and policy mandates that impact your stack and costs. What's changing, when, and how long you have. For day-to-day announcements, see the Azure release feed.

Want these dates as email or Slack alerts at 90, 30 and 7 days out? Set up an EOL alert with the eol tag.

Service: All AKS Azure AI Foundry model Azure Database for MySQL Azure Database for PostgreSQL Azure DevOps Server Azure Functions Azure SQL Blob Storage Cosmos DB Entra Key Vault Synapse

Dated changes (8)

Announced changes with an explicit effective date: pricing, defaults, retirements and policy mandates that existing workloads must plan around. Every date shown has been checked against the original announcement, which each row links to.

14 Sept 2026
EOL Azure Functions Azure Functions runtime 1 reaches end of life in 64 days source ↗

Azure Functions runtime 1.x reaches EOL Sep 14, 2026. Migrate apps to v4.x. V3 on Linux Consumption plan stops Sep 30, 2026.
32 days
30 Sept 2026
Retirement Azure Functions Azure Functions runtime v3 on Linux Consumption to be retired Sep 30, 2026 source ↗

Azure Functions runtime v3 on Linux Consumption retired Sep 30, 2026. Migrate to a supported runtime.
48 days
30 Sept 2026
Retirement Azure Functions Retirement: Azure Functions runtime v3 on Linux Consumption will stop running September 30, 2026 source ↗

Azure Functions runtime v3 on Linux Consumption will stop running. Migrate apps to runtime v4 by Sept 30, 2026.
48 days
1 Oct 2026
EOL Azure Functions Retirement: Support for Python 3.10 ends on October 1, 2026 – upgrade your Azure Functions apps to Python 3.13 source ↗

Support for Python 3.10 in Azure Functions ends. Upgrade your Functions apps to Python 3.13.
49 days
31 Mar 2027
Retirement Azure Functions Retirement: Python support for Azure App Service and Azure Functions on Windows will be retired on March 31, 2027 source ↗

Python support for App Service/Functions on Windows will be retired. Migrate Python apps to Linux by Mar 31, 2027.
230 days
31 May 2027
Policy Azure Functions Retirement: TLS 1.0 and TLS 1.1 in Azure App Service, Azure Functions, and Azure Logic Apps source ↗

Azure App Service, Functions, and Logic Apps will stop accepting TLS 1.0/1.1 connections after May 31, 2027. Update clients.
291 days
31 Mar 2028
EOL Azure Functions Retirement: Azure Functions – Durable Functions support for Netherite will end on March 31, 2028 source ↗

Azure Functions Durable Functions support for Netherite ends 2028-03-31. Apps will work, but no support. Evaluate replacement.
596 days
30 Sept 2028
Retirement Azure Functions Retirement: The Linux Consumption hosting plan of Azure Functions will be retired on September 30, 2028. Migrate to Flex Consumption. source ↗

Azure Functions Linux Consumption hosting plan retired. Migrate to Flex Consumption by Sep 30, 2028 to avoid disruptions.
779 days

By service

Azure Functions runtime Details & FAQ →

Version	End of life	Status
1	14 Sept 2026	31 days left