Anthropic releases
Anthropic news, Claude releases and SDK updates. New features, breaking changes, security advisories and deprecations - each summarised in plain English and updated continuously.
Tracking 125 Anthropic releases · Updated
- Claude Code Releases sdkaideprecationengineer ·
Claude Code v2.1.183: Enhanced Safety and UX Improvements
This release of Claude Code includes significant safety enhancements, particularly around destructive Git and infrastructure commands, and improves the user experience with clearer model warnings and streamlined configuration. It addresses several bugs impacting subagent performance, terminal interaction, and task handling. These updates are primarily for developers and engineers interacting with Claude Code for coding and infrastructure tasks.
patch deprecation - Anthropic Python SDK Releases sdkaiengineer ·
Anthropic SDK Python adds refusal fallback middleware tagging
Anthropic's Python SDK has been updated to version 0.111.0, introducing a new feature that tags refusal-fallback middleware requests. This change helps developers better understand and manage how the SDK handles situations where model responses are refused, potentially improving error handling and debugging for applications relying on the SDK. The update is available now for users of the Anthropic Python SDK.
feature - Anthropic Python SDK Releases sdkai ·
Anthropic SDK Python v0.110.0 adds code execution tool support
Anthropic's Python SDK has been updated to version 0.110.0, introducing support for the new code_execution_20260120 tool. This update enhances the SDK's capabilities for developers integrating with Anthropic's AI models. Several bug fixes are also included, addressing issues with header merges, stream event types for Bedrock, and header key management. The release is available now for users of the Python SDK.
feature patch - Anthropic News ai ·
Anthropic Opens Seoul Office, Forges New Korean AI Partnerships
Anthropic has opened a new office in Seoul, South Korea, signaling a deeper commitment to the region's burgeoning AI ecosystem. This expansion is accompanied by new partnerships with Korean enterprises, startups, and researchers, aiming to accelerate the deployment and development of AI technologies like Claude. These collaborations span various sectors, from cloud and gaming to energy and IT services, and extend to academic research and non-profit initiatives, highlighting the broad impact and diverse applications of Anthropic's AI models.
announcement feature - Claude Platform Release Notes ai ·
Claude Platform Updates: New Models, Tools, and Cloud Support
Anthropic has released Claude Fable 5 and Claude Opus 4.8, offering enhanced capabilities like 1M token context windows and improved reasoning. New tool versions for code execution and web search, along with expanded support for Claude Platform on AWS, cater to developers and researchers. The release also includes deprecations of older models like Sonnet 4 and Opus 4, signaling a push towards newer, more powerful versions.
feature deprecation announcement - Claude Code Releases sdkaiengineer ·
Claude Code v2.1.176: Improved credential caching, session features, and bug fixes
Claude Code version 2.1.176 introduces several enhancements, including session titles in the conversation's language and improved AWS Bedrock credential caching for longer validity. It also fixes numerous bugs affecting model selection, auto mode fallbacks, hook conditions, sandbox operations, and remote control functionality. These updates benefit developers and organizations using Claude Code by improving stability, usability, and security, particularly for those with specific model allowlists or complex session management needs.
patch feature - Claude Code Releases sdkai ·
Claude Code v2.1.175: Enforce Available Models Setting
A new `enforceAvailableModels` setting is introduced in Claude Code v2.1.175, enhancing security and control. When enabled, this setting ensures that the default model respects the `availableModels` allowlist, preventing fallback to disallowed models. This change primarily impacts organizations and administrators managing model access for their development teams.
patch feature - Anthropic News aiengineerfinance ·
Anthropic and TCS Partner to Bring Claude AI to Regulated Industries
Anthropic and Tata Consultancy Services (TCS) are partnering to bring Claude AI to regulated industries like finance and healthcare. TCS will deploy Claude internally to 50,000 employees and build Claude-powered products for clients, aiming to enhance accuracy and compliance. This collaboration will initially focus on industry-specific offerings such as claims processing and lending advisory, with work already underway in areas like customer experience improvement and software engineering productivity.
announcement feature - Claude Platform Release Notes aipreviewengineer ·
Claude Platform Updates: Code Execution and Web Tools Enhanced
Anthropic has updated its code execution, web search, and web fetch tools on the Claude platform. The code execution tool now explicitly states a 90-second time limit to better manage cell execution, while the web tools have added a response inclusion parameter to streamline agentic workflows. These updates aim to improve the predictability and efficiency of Claude's interactions with external tools for developers.
feature - Anthropic News aiengineer ·
Anthropic and DXC Technology form global alliance to integrate Claude
Anthropic is partnering with DXC Technology to integrate its Claude AI model into systems used by major banks, airlines, and other regulated industries. DXC will train thousands of engineers to deploy Claude within customer environments, leveraging the AI for modernization, cybersecurity, and application services. This alliance aims to bring Claude's capabilities to mission-critical systems, with DXC having already integrated Claude into its own operations and AI-native orchestration platform, DXC OASIS.
announcement feature - Anthropic News aiengineer ·
Anthropic Launches Claude Corps AI Fellowship Program
Anthropic is launching Claude Corps, a national fellowship program that will train 1,000 early-career individuals in AI skills and place them at nonprofits for a year. This initiative aims to extend the benefits of AI to underserved communities and provide fellows with valuable career skills, backed by an initial $150 million investment. The program partners with CodePath for fellowship management and Social Finance for evaluation, and will support 400 nonprofits over the next year.
announcement feature - Claude Code Releases sdkaiengineermedia ·
Claude Code v2.1.172: Sub-agents, Bedrock region, and numerous fixes
This patch for Claude Code introduces a significant enhancement allowing sub-agents to spawn their own sub-agents up to five levels deep, expanding agent capabilities. It also improves Amazon Bedrock integration by respecting AWS region configuration and includes fixes for session management, tool usage, and UI rendering. These changes benefit developers and architects using Claude Code for complex agent-based workflows, particularly those integrating with AWS services or encountering specific tool/UI bugs.
patch feature - Claude Platform Release Notes ai ·
Claude Platform Updates: New Models, Tooling, and AWS Integration
Anthropic has released updates to its Claude Platform, including new models like Claude Fable 5 and Claude Opus 4.8, offering enhanced capabilities and larger context windows. The platform also introduces new tool functionalities, improved agent orchestration on AWS, and deprecates older models, requiring users to migrate to newer versions. These changes affect developers and organizations using the Claude API and its associated client SDKs and console.
feature deprecation patch - Anthropic Python SDK Releases sdkaiengineer ·
Anthropic Python SDK v0.109.0 adds Managed Agents API support
Anthropic's Python SDK has been updated to version 0.109.0, introducing support for Managed Agents deployments. This feature allows developers to leverage advanced agent capabilities within their applications. The update also includes support for environment variable credentials, simplifying authentication for users. This release is now available for all users of the Python SDK.
feature - Claude Code Releases sdkaigaengineer ·
Anthropic Claude Code v2.1.170: Fable 5, Session Fixes
Anthropic has released Claude Code version 2.1.170, introducing the new Mythos-class model Claude Fable 5, now safe for general use and exceeding previous model capabilities. This update also resolves an issue where sessions and transcripts were not saved or retrievable via `--resume` when launched from specific terminal environments. This patch is available now for all users.
feature patch - Claude Release Notes ai ·
Anthropic Launches Claude Fable 5 Model
Anthropic has released Claude Fable 5, a Mythos-class model that is now safe for general use. This launch provides a new, more broadly applicable AI model for users. Further details are available in a related blog post.
feature announcement - Anthropic Python SDK Releases sdkai ·
Anthropic SDK Python Adds New Claude Models and Fallback Support
Anthropic SDK Python version 0.108.0 introduces support for the new claude-mythos-5 and claude-fable-5 models. This release also adds client-side fallback middleware for API providers that do not support server-side fallbacks, enhancing resilience for users. These features are available now for developers using the Python SDK.
feature - Claude Platform Release Notes aipreviewengineer ·
Anthropic Launches Claude Fable 5 and Mythos 5 with 1M Token Context
Anthropic has released Claude Fable 5, their most capable widely available model, and Claude Mythos 5 for Project Glasswing participants. Both models feature a 1 million token context window and enhanced adaptive thinking capabilities. These updates impact users interacting with the Claude API, particularly concerning tokenizer changes, safety classifier responses, and data retention policies for Fable 5.
feature announcement - Anthropic News ai ·
Anthropic Launches Claude Fable 5 and Mythos 5 AI Models
Anthropic has released Claude Fable 5, a highly capable model for general use with safety safeguards, and Claude Mythos 5, a version with lifted safeguards for cybersecurity professionals. Fable 5 excels in software engineering, knowledge work, and vision tasks, while Mythos 5 demonstrates advanced capabilities in drug design and scientific hypothesis generation. Both models are priced significantly lower than their predecessors and are available with different access models.
feature announcement - Claude Code Releases sdkaiengineerfinance ·
Claude Code v2.1.169: Troubleshooting, Directory Navigation, and UI Fixes
This update to Claude Code introduces a `--safe-mode` flag for troubleshooting and a `/cd` command for changing directories mid-session without disrupting the prompt cache. It also includes numerous bug fixes addressing issues with UI responsiveness, enterprise policies, and agent management across platforms. These changes benefit developers and architects troubleshooting complex setups or working with large codebases, offering a more stable and efficient experience.
patch feature