Alvin Lang
Oct 07, 2025 17:10
GitHub announces the deprecation of Claude Sonnet 3.5 across all Copilot experiences by November 6, 2025, urging users to update workflows and integrations.
GitHub has announced the impending deprecation of Claude Sonnet 3.5, which will affect all GitHub Copilot experiences, including Copilot Chat, inline edits, ask and agent modes, and code completions. This change is set to take effect on November 6, 2025, according to The GitHub Blog.
Transition to Newer Models
In place of Claude Sonnet 3.5, GitHub plans to introduce newer and more capable models. This move is aimed at ensuring that users on the Copilot Free plan continue to experience improvements over time. GitHub has advised users to update their workflows and integrations to accommodate the supported models before the deprecation date.
Guidance for Copilot Enterprise Administrators
For Copilot Enterprise users, administrators may need to enable access to alternative models through their model policies within the Copilot settings. Administrators are encouraged to verify the availability of these models by checking their individual Copilot settings and confirming that the policy is enabled for a specific model. Once activated, the model will appear in the Copilot Chat model selector in VS Code and on github.com. Importantly, no action is required to remove the models once they have been deprecated.
Support for Enterprise Customers
GitHub Enterprise customers with questions or concerns are encouraged to contact their account managers for further assistance. Additionally, users can learn more about the available models in Copilot by referring to the documentation provided by GitHub. Feedback and questions can be directed to the GitHub Community discussions, where users can engage with others regarding Copilot-related topics.
Broader Implications
The deprecation of Claude Sonnet 3.5 is part of a broader trend within the tech industry to continuously update and improve AI models, ensuring that users have access to the latest advancements. As AI continues to evolve, platforms like GitHub are increasingly focused on providing users with the most efficient and effective tools available.
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