●MODEL — Claude Opus 4.8 and Haiku 4.5 arrive in the Messages API for coding and agentic work●CODE — Claude Code adds /rewind to resume before /clear, with steadier MCP reliability and OAuth retries●CODE — CPU use during streaming drops about 37%, improving stability on long-running sessions●CLOUD — Claude is generally available in Microsoft Foundry on Azure with Azure-native access●SECURITY — Static API keys can now be replaced with WIF short-lived, scoped credentials●POLICY — The US government clears Anthropic to release Mythos 5 to about 100 firms and agencies●MODEL — Claude Opus 4.8 and Haiku 4.5 arrive in the Messages API for coding and agentic work●CODE — Claude Code adds /rewind to resume before /clear, with steadier MCP reliability and OAuth retries●CODE — CPU use during streaming drops about 37%, improving stability on long-running sessions●CLOUD — Claude is generally available in Microsoft Foundry on Azure with Azure-native access●SECURITY — Static API keys can now be replaced with WIF short-lived, scoped credentials●POLICY — The US government clears Anthropic to release Mythos 5 to about 100 firms and agencies

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Claude API¹ Azure Foundry¹ rate limits¹ retry¹

⬡ API & SDK/2026-06-30Advanced

The Same 429 Wears a Different Face on Each Route: Running Claude Safely over Anthropic Direct and Azure Foundry

With Claude now generally available on Microsoft Foundry, a two-route setup is realistic even for solo developers. Here is how to fold the route-by-route differences in 429s and retry-after into one normalized error type and a single backoff policy.