Changelog Update

LLM model refresh: Grok 4.3 upgrade + Anthropic model migrations

📌 Context

Two of our LLM providers are making changes to their model catalogs:

• xAI has upgraded Grok 4 to version 4.3 on their infrastructure

• Anthropic is retiring several Claude models on June 15, 2026, and has already retired the Haiku 3.5 models

To ensure continuity of service and avoid any disruption, we're proactively updating Dust's model catalog.

🔄 Impact on Dust

We've already completed the following updates:

Grok models (live now):

• Our "grok-4" models now automatically run on Grok 4.3

Anthropic migrations (rolling out before June 15):

• claude-4-sonnet → migrating to claude-sonnet-4-6

• claude-4-opus → migrating to claude-opus-4-7

• claude-3-haiku / claude-3-5-haiku → migrating to claude-haiku-4-5

• claude-sonnet-4-5 → migrating to claude-sonnet-4-6

👤 Impact for you

No disruption expected. Your agents and workflows will continue to function normally:

• If you're using Grok models, you're already benefiting from the 4.3 upgrade

• If you're using the affected Anthropic models, we'll handle the migration seamlessly before the retirement dates

• Your agent configurations don't need to be updated—we're managing the transition on the backend

✅ Actions required

No action required on your part. We're handling these updates automatically to ensure uninterrupted service.

If you have any questions about these model changes or want to understand the differences between the new model versions, feel free to reach out to your Customer Success Manager.