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.NET: Update retired Claude model in 04_MultiModelService sample - #8879
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westey (westey-m) merged 2 commits intoOct 1, 2026
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claude-sonnet-4-20250514 was retired by Anthropic on 2026-06-15; its listed replacement is claude-sonnet-4-6. Also list the keys the sample reads in its verify-samples entry (Google instead of Bedrock since microsoft#5074). Fixes microsoft#8878
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Copilot review overview
🟢 Approval recommended
The focused updates match the sample’s implementation and resolve the retired-model failure.
Review effort: Balanced
Findings: None
What changed in this PR
Updates the multi-model workflow sample to use an active Claude model and accurate provider configuration.
Changes:
- Replaces the retired Claude Sonnet model.
- Corrects required API keys and skip messaging.
| File | Description |
|---|---|
Program.cs |
Uses claude-sonnet-4-6. |
WorkflowSamples.cs |
Lists the sample’s current provider keys. |
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@microsoft-github-policy-service agree |
westey (westey-m)
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Motivation & Context
The .NET Start Here sample
03-workflows/_StartHere/04_MultiModelServiceusesclaude-sonnet-4-20250514, which Anthropic retired on June 15, 2026 (model deprecations), so the reporter agent's requests fail when the sample runs. Details are in #8878.Description & Review Guide
Program.cs: the Anthropic client usesclaude-sonnet-4-6, the replacement Anthropic lists forclaude-sonnet-4-20250514.dotnet/eng/verify-samples/WorkflowSamples.cs: the entry for this sample lists the keys it reads (GOOGLE_GENAI_API_KEY,ANTHROPIC_API_KEY,OPENAI_API_KEY). It still named the Bedrock keys from before .NET: fix: 04_MultiModelService Workflows sample #5074 moved the researcher agent to Google.claude-haiku-4-5orclaude-sonnet-4-5.I haven't built or run the sample locally.
Related Issue
Fixes #8878
Contribution Checklist
breaking changelabel (or add "[BREAKING]" to the title prefix, before or after any language prefix) — a workflow keeps the label and title prefix in sync automatically.