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Mid-conversation system messages available on Claude Fable 5, Mythos 5 and Opus 4.8

Generally availableVerified

Mid-conversation system messages work on Claude Fable 5, Mythos 5 and Opus 4.8 on the Claude API, Amazon Bedrock and Google Cloud with no beta header required, correcting earlier availability notes.

LLMsDeveloper tools

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Also shipped Jul 15, 2026Anthropic in July 2026 →

Consumer-controlled maintenance policies , General Availability

Consumer-controlled maintenance policies for Snowflake Native Apps are now generally available. Consumers can define when Snowflake Native App upgrades happen in their accounts by creating a maintenance policy and applying it to an account or an individual app. For more information, see Consumer-controlled maintenance policies .

GA
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Thinking Machine Labs Inkling now available as a Databricks-hosted model in Public Preview

Model Serving now supports Thinking Machine Labs Inkling as a Databricks-hosted model. This mixture of experts (MoE) model supports text and image inputs, a 1 million token context window, and is optimized for coding, reasoning, and agentic tool-use tasks. You can access this model using Foundation Model APIs . Inkling is available in Public Preview .

Preview
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