Field guide · counted in UTC days

Extinction Watch

Models and APIs about to disappear, taken from the shutdown dates in our stories. Migrate before they do. The count updates each time you open the page.

Going extinct

NOV 10Shuts down
Azure Functions: in-process .NET, .NET 8 and PowerShell 7.4 support all end on 10 NovemberAzure Functions in-process .NET model, plus .NET 8, .NET 9 and PowerShell 7.4 on FunctionsMove to Isolated worker model on .NET 10 (or .NET Framework 4.8); PowerShell 7.6
NOV 30Shuts down
Your model has a retirement dateClaude Sonnet 4.5 on the Claude API (claude-sonnet-4-5-20250929)Move to claude-sonnet-5-5
DEC 14Shuts down
Claude adds Dashboards and Motion in beta; Docs, Slides and Design go GAStandalone Claude Design site (claude.ai/design)Move to Claude artifacts (Design and design systems)
JAN 6Shuts down
OpenAI will remove tts-1 and gpt-4o-mini-tts on 6 January 2027OpenAI API: tts-1, tts-1-hd and the gpt-4o-mini-tts snapshots dated 2025-03-20 and 2025-12-15Move to gpt-realtime-2.1-mini (requires a realtime migration)